A bar customer thumped a doorman in the face and then struggled with two police officers called to the scene.
David Runciman barged into the officers in the Chaos Bar and then kicked a PC in the head and upper body in the police van.
Runciman, 27, of Manor Road, Blackpool, pleaded guilty to assault and resisting arrest.
He was sentenced to do 180 hours unpaid work for the community.
He was also put on 12 months court supervision and ordered to pay £100 compensation plus £85 costs with £60 victims’ surcharge by Blackpool magistrates.
Pam Smith, prosecuting, said a doorman was trying to calm a disturbance at the Chaos Bar, Queen Street, when Runicman walked up and punched him in the face, causing a cut under his eye.
David Charnley, defending, said Runciman had started drinking after his mother died suddenly at the age of 52.
She had lived in Australia and he could not get a visa to go out there. The court heard the offences happened while he was grieving and drinking too much. He had believed the doorman was being heavy-handed with his friend.