Dust collector

The utility model discloses a dust separator, which is composed of a tube body. An air outlet opening is arranged on the upper end of the tube body, a sewage draining opening is arranged on the lower part. A fume inlet opening is arranged at the lower part of the tube wall. An inlet pipe opening is arranged at the upper part of the tube wall, a circular water spray pipe provided with an ejector nozzle is arranged in the tube body corresponding to the inlet pipe opening. A dust box and a pump water box are arranged at the outer side of the tube body, the dust box is connected with the pump water box through a filter screen. The inlet pipe opening is connected with the pump water box through a water outlet pipe and a water pump. A water outlet mouth is arranged on the lower end of the tube wall, the water outlet mouth is connected with an ash box through a water inlet pipe. The dust separator of the utility model has the advantages of good dedusting effect, low operating cost, thus the utility model can be widely used for dedusting and desulphurizing the fume exhausted by a boiler, a furnace, etc.