Fault detection device for environmental protection equipment

The utility model discloses an environmental protection equipment fault detection device which comprises a box body, a mounting plate is fixed in the box body, filter cartridges which are uniformly distributed are fixed on the outer wall of the bottom of the mounting plate, an ash removal assembly is arranged at the top of each filter cartridge, a cylinder body is fixed on the primary outer wall of the box body, and one end of the cylinder body extends into the box body and is fixedly provided with a rubber bag. A piston is arranged in the cylinder body, a conductor column is fixed to the outer wall of the side, away from the rubber bag, of the piston, two electrode blocks are fixed to the inner wall of the cylinder body, a gap matched with the conductor column is reserved between the two electrode blocks, and an audible and visual alarm is fixed to the outer wall of one side of the box body. When the rubber bag is deformed due to dust extrusion, the conductor column on the piston is in contact with the two e