Smoke exhaust equipment with smoke alarm

The utility model relates to the technical field of fire protection and smoke exhaust, in particular to smoke exhaust equipment with a smoke alarm. According to the technical scheme, the smoke exhaust pipe comprises a reinforcing fan, a smoke exhaust pipe body, a smoke exhaust fan, an air bag and fixing bolts, a bottom plate is welded to the bottom end of the outer surface of the smoke exhaust pipe body, a controller is installed on one side of the inner wall of the smoke exhaust pipe body, a smoke alarm is installed on the other side of the inner wall of the smoke exhaust pipe body, and the air bag is fixedly embedded into the inner wall of the smoke exhaust pipe body. A through hole is formed in the air bag, the outer end face of one side of the air bag communicates with an air inlet pipe penetrating through the smoke exhaust pipe body, the outer end face of one side of the air inlet pipe is rotationally connected with a sealing plug, a handle is welded to the outer end face of one side of the sealing plug,