Dust collector of plastic pipe production workshop

The invention discloses a dust collector of a plastic pipe production workshop. The dust collector comprises a dust collection box, wherein an air inlet and an air induction port are formed in the dust collection box; the air inlet is positioned at a lower position of the side wall of the dust collection box; an air inlet pipe positioned in the dust collection box is connected at the air inlet; the air inlet pipe is horizontally arranged; a free port of the air inlet pipe is positioned in a cylindrical air guide plate; the air guide plate is vertically arranged; the upper port of the air guide plate is connected with a filter screen fixed on the inner side wall of the dust collection box; the air induction port is positioned at an upper position of the side wall of the dust collection box; an induced draft fan is arranged at the air induction port; an inverted conical collection port is formed at the lower port of the dust collection box; the lower port of the air guide plate is corresponding to the collectio