Partitioned dust removal mechanism of laser cutting machine

The utility model relates to the field of partitioned dust removal of laser cutting machines, and discloses a partitioned dust removal mechanism of a laser cutting machine, which comprises a collecting tank, the collecting tank is arranged on the top surface of an operating table, a laser cutting machine body is arranged on the top surface of the operating table in a sliding manner, and a fixing cylinder is fixed on the bottom surface of the laser cutting machine body. A movable groove is formed in the bottom face of the fixed cylinder, a telescopic cylinder is slidably inserted into the movable groove, a clamping ring is fixed to one side of the inner wall face of the movable groove, a clamping ring is fixed to the outer circle wall face of the telescopic cylinder, a dust suction and exhaust pipe is fixedly communicated with one side of the fixed cylinder, and a draught fan is fixedly communicated with the end, away from the dust suction and exhaust pipe, of the fixed cylinder. According to the dust removal