Fireproof structure of metal air pipe

The utility model discloses a fireproof structure of a metal air pipe, which comprises a spraying structure, a side baffle structure is arranged at the bottom end of the spraying structure, a fireproof structure is arranged at the bottom end of the side baffle structure, an air pipe structure is arranged on one side of the side baffle structure, the spraying structure comprises a water tank, a spray head, a mounting plate, a water pipe and a negative pressure hole, and the side baffle structure comprises a rotating plate, a clamping plate, a hinge and a clamping end. The fireproof structure comprises an interlayer, a water guide layer, a first connecting rod, a limiting plate and a clamping groove. The air pipe structure comprises a pipe body, a butt joint end and a second connecting rod. The air duct structure has the advantages that the side face of the air duct can be prevented from being affected by combustion of a fire through the cooperation of the spraying structure and the side blocking structure, and