Local cleaning device for overhauling valve parts

The utility model discloses a local cleaning device for overhauling valve parts. The local cleaning device comprises a mounting seat and a dust collection box, a dust collection cylinder is arranged in the mounting seat, and a dust collection fan is arranged at the left end of the lower surface of the mounting seat; the dust collection box is in sliding connection with dovetail grooves symmetrically formed in the right end of the mounting base, through grooves are formed in the right end of the mounting base and the right end of the outer side face of the dust collection barrel, the through grooves correspond to the opening position of the upper surface of the dust collection box, a conical pipe is arranged at the working end of the dust collection fan, and a sealing ring matched with the conical pipe is arranged at a through hole in the left side of the dust collection box; a filter screen is arranged on the right side surface of the sealing ring; wherein a control switch is arranged at the front end of the