RDD small industrial dust collection machine is mainly used for machining, casting, ceramics processing, sandblasting, fill mixing, cutting and polishing of dust. For example: a stirring job, dust feeding operations, board processing operations, matte work, grinding operations, casting operations, casting grinding, clean sand operations, cutting jobs, cutting jobs, crushing, stone carving work, drilling operations. In the dusty gas at negative pressure centrifugal fan into the dust collector machine, after several layers cartridge filter, dust filter is blocked in the outer wall, the clean gas discharged by the fan, micro pulse automatic backwash system, the attached to the outer wall of the dust filter and collected in the dust bins crashing, so as to maintain long-term filter flow, to achieve a stable effect of dust. Good equipment stability, purification rate of 99%.