Flying dust prevention device for foundation pit excavation operation for civil engineering

The utility model discloses a dust-proof device for foundation pit excavation operation for civil engineering, which comprises a bottom frame, a dust box, a dust-proof device and a dust-proof device, wherein the upper surface of the bottom frame is fixedly provided with a dust box; the input end of the air extracting pump is connected with the left end of the dust box, and a dust screen is installed in the dust box; the motor is fixedly mounted at the right upper end of the dust box; the telescopic rods are fixed to the left side and the right side of the top end of the bottom pipe, a mounting plate is fixed to the output ends of the telescopic rods, a top pipe with the longitudinal section of a T-shaped structure is welded to the inner side face of the mounting plate, a hose is connected between the top pipe and the bottom pipe, and dust suction pipes with the outer ends of a latticed structure are installed at the outer end of the top pipe at equal intervals. According to the dust raising prevention device