Portable dust purifier for coal mine

The invention relates to a portable dust purifier for a coal mine. The portable dust purifier comprises a purifier body; the interior of the purifier body is provided with a centrifugal blower fan; one side of the centrifugal blower fan is connected with an exhaust fan through an exhaust pipe; the exhaust pipe is provided with an exhausting nozzle at one end of the outer side of the purifier body; the other side of the centrifugal blower fan is connected with a filtering device arranged in a flue dust treating box; the flue dust treating box is connected with an air outlet pipe; the interior of the purifier body is further provided with a battery pack, and the upper end of the external part of the purifier body is provided with a handle. The portable dust purifier has a simple structure and is reasonably designed. Through arrangement of the centrifugal blower fan and the flue dust treating box, dust floating above the coal mine can be collected into the filtering device in the flue dust treating box through the centrifugal blower fan, so the quantity of dust in the air is reduced, and health of workers is protected; and through arrangement of the handle, the dust purifier is portable.