The cyclone dust wiper has a spiral type bypass separation chamber on the outside of the cylinder. The dusty air enters into the cylinder and shapping to the helical flow, then moves downward along the tube wall and the bypass separation chamber, separates the dust due to the centrifugal force,working on the removal of high density ,dry and non fibrous dust,dust removal efficiency up to 85-95%, suitable for smelting, casting, sandblasting, building materials and refractory materials industries, it can also be used for dust removal system's first stage dust removal .