The 31-year-old ex-Inter striker is eager to challenge for the Copa Libertadores after agreeing a deal to play for the Furacao, with whom he has trained since December, in 2014
The 31-year-old had been training with the Curitiba club since December in order to regain his fitness after his spells with Corinthians and Flamengo came to an end.
The forward, who has not played a competitive game since March 2012, is delighted to have joined the Furacao and is desperate to guide the club to a Copa Libertadores title win in 2014.
"It's very gratifying, especially after so much hard work and dedication during the period that I practiced with the team. I'm getting an opportunity to return to football with Atletico," he told the club's official website.
"The team was eager for me to sign the contract here. This is very important because the team has supported me a lot on this journey. This is a wonderful, united and close group.
"[The Copa Libertadores] is the only title that I haven't won and I want to help Atletico win it. I want to gain more rhythm and wait for an opportunity to begin entering the matches and eventually fight my way into a starting position.
"I will continue working hard to get into the game and do what I know best, which is scoring goals. I want to help Atletico secure titles and bring joy to the fans."
Adriano, who began his career with Flamengo, played more than 120 games for Inter and won four Serie A titles with the club.
The forward, who has been dogged by fitness and off-the-field problems throughout his career, has also played for Roma, Parma and Sao Paulo and has won 48 senior caps for Brazil.