Tim Sherwood's men kept up their hunt for Champions League qualification at St James' Park against a Magpies side who have now won just once in seven league matches
The Togo striker, who was frozen out of the side under former coach Andre Villas-Boas, took his tally for the season to nine in all competitions as Spurs won on the road for the ninth Premier League game this season.
|VIEW FROM ST JAMES' PARK
|By Harry Slavin
A memorable away day for Spurs fans as they claim a huge victory over a despondent Newcastle side.
Tim Sherwood clearly learnt a thing or two from Manchester City’s masterclass at White Hart Lane last month as his team produced an absorbing display away from home and put Newcastle to the sword thanks to an array of top displays form his side.
Alan Pardew meanwhile is running out of excuses as the Magpies produced a limp display that left fans booing at full-time. There is more than just fog on the Tyne this evening.
Nacer Chadli completed the rout with a superb strike two minutes from time to hand Newcastle a fourth straight home league defeat, with Alan Pardew's men having drawn a blank in all of those matches.
The victory keeps Tim Sherwood's side in the hunt for fourth spot as Spurs seek a return the European elite.
It was Tottenham who started brightest and after four minutes Moussa Dembele muscled past Davide Santon on the right to find Adebayor in the box but his shot was deflected for a corner.
Papiss Cisse, making his first start in four months for the home side, should have opened the scoring inside the opening eight minutes but fired his close-range strike straight at Hugo Loris.
Adebayor broke the deadlock 19 minutes in with a simple finish from six yards after Tim Krul spilled Nabil Bentaleb's cross from the left.
Sammy Ameobi tried to force an equaliser with a great run and shot through the middle but strong defending from Younes Kaboul stopped him in his tracks.
Tottenham almost increased their advantage when Kyle Walker whipped a dangerous ball in from the right but the Newcastle defence crowded Aaron Lennon out of the box.
Lennon almost scored Tottenham's second before the break when he cut in from the right and unleashed a shot that beat Krul but hit the bottom of his right-hand post.
Seven minutes after the restart Paulinho followed up a saved Adebayor shot to convert Tottenham's second and underline their dominance.
Newcastle introduced Hatem Ben Arfa from the bench and started to get a grip on the game after 65 minutes as Paul Dummett fizzed a shot just past Lloris' goal.
But Adebayor clinched his second of the game when he knocked his shot into the ground and over the head of Krul with eight minutes left.
Chadli saved the best until last, curling home from distance to cap an excellent display from Sherwood's charges.
They remain three points behind Liverpool, however, after the Reds beat Fulham 3-2 thanks to a late Steven Gerrard penalty.