Rapid fire air cannon

The utility model discloses a rapid fire air cannon. The rapid fire air cannon comprises a cannon barrel, an air room, a tubular cannon tail, a solid breech block and an air tube, wherein the cannon tail is installed at the rear end of the cannon barrel, the breech block is detachably installed at the rear end of the cannon tail, the air room is connected with one end of the air tube, and the other end of the air tube is connected with the rear side wall of the cannon barrel and communicated with the cannon barrel. According to the rapid fire air cannon, the air room is laterally arranged, a cannon bullet is load at the rear end, and the cannon bullet can be rapidly filled and fired.