Occupational disease protection device for metal dust

The utility model relates to a metal dust occupational disease protection device which comprises a collecting box, a water pipe is inserted into the collecting box, a containing frame penetrates through the center position of the upper end face of the collecting box and is fixedly connected with the collecting box in a sealed mode, the water pipe penetrates through the containing frame, and a driven wheel is fixedly connected to the outer wall of the extending end of the water pipe and meshed with a driving wheel; air pipes are inserted into the two side walls of the air bellow through air pipe connectors, the other ends of the air pipes are inserted into the inner walls of a plurality of rotating pins, the upper end of the air bellow is perpendicularly and fixedly connected with a first rotating shaft, the upper end of the first rotating shaft is coaxially and fixedly connected with a containing cylinder, and the outer walls of the containing cylinder and the air bellow are symmetrically and fixedly connecte