The diry fog dust suppression system can produce water fog particles with diameter of 1-10 y m, can efectively adsorb the dust parti.cles with diameter below 5 y m to get them coalesced and setled under its own gravity, finally achieved the dust suppression functionThe dust suppression eficiency has reached more than 90% in tippler machine room, sieving tower and transferring tower, which hasan incomparable advantages over other dust suppression devices in capturing the inhalable floating dust about 5 y m smaller.Widely used in confirned or semi-confined area with fixed polution source in port, themal power, steel, mining and chemical industnand other discharges without organization, such as tippler machine room, sieving tower, transfering tower, crushing machine roomloading system, loading and unloading ship machine, etc.