Local dust collection device for dust-free workshop

The local dust collection device comprises a sweeping brush, a square sliding rod, a square sleeve, a shaft rod, a bevel pinion, a bevel gear wheel, a rotating shaft, a dust blocking cover, a motor, adust guide pipe, fan blades, a rotating rod, a hairbrush, a U-shaped blocking rod, a dust collection box, an installation frame, an exhaust hole, a draught fan, a dust filtering net, a connecting rod, idler wheels, connecting rods, springs, installation boxes and box covers. Through mutual cooperation of the bevel gear, the square sleeve, the sweeping brush, the spring and the mounting frame, wall corners of a dust-free workshop can be better swept and subjected to dust collection, manual sweeping is avoided, and therefore the dust collection speed of the dust-free workshop is greatly increased, and meanwhile the dust collection efficiency is improved; according to the dust collector, dust in the dust guide pipe can be better cleaned, the dust collector is prevented from being disassembled, the working intensity