Dust collection device for door loop line welding

The utility model relates to a door loop welding dust collection device which comprises a welding base plate, dust collection units are arranged on the two sides of the welding base plate in the Y-axis direction, and the dust collection units are arranged in the X-axis direction. The dust collection unit comprises a dust collection pipe, the side, in the negative direction of the X axis, of the dust collection pipe is provided with a suction connector, the side, in the positive direction of the X axis, of the dust collection pipe is provided with an end cover, and a plurality of exhaust valve assemblies are evenly distributed on the dust collection pipe between the suction connector and the end cover in the X axis direction. The dust collection unit is integrated on the welding substrate, the integration of the device is good, welding smoke dust on the welding substrate can be conveniently and instantly collected, the operation is simple, and the use is convenient; and dust collection treatment can be selecti