The ex-Arsenal striker was convicted of assaulting a taxi driver following a night out in Denmark in September.
A court in Copenhagen watched a video of the incident filmed from inside the cab.
His club told Danish media channel TV2 the sentence will not impact his future the club and his lawyers plan to appeal.
He was able to walk free from the courtroom because the appeal is pending.
However, the striker's club Rosenborg have refused to take action against him. "We are keeping him", said Tove Moe Dyrhaug, the chief executive of Bendtner's Norwegian club Rosenborg.
The 30-year-old had had been out partying with girlfriend Philine Roepstorff on September 9 when he argued with the driver over his route.
Brazil To Move Israel Embassy To Jerusalem
Recall that in December, 2017, President Donald Trump of the United States of America recognized Jerusalem as the Israeli capital. Israel occupied east Jerusalem in the 1967 Six-Day War and later annexed it in a move never recognized by the global community.
Having quarrelled over the £4.80 fare, Bendtner punched the driver in the jaw before kicking him as he lay on the ground.
He has also been ordered to pay the taxi driver just over £1000 in compensation. I could not imagine it would develop as it did, and of course I'm extremely sad that the outcome became as unfortunate as it did.
'To Rosenborg fans and audiences, I regret that this has happened. I thank you for your understanding.
He had loan spells at Sunderland, Birmingham City and Juventus while at Arsenal before making a permanent move to German club Wolfsburg.
Bendtner returned to English football with Nottingham Forest in 2016 but did not see out a full season before moving to Rosenborg.