Cyclone dust collector wood is composed of intake pipe, exhaust pipe, cylinder body, cone and ash bucket .Cyclone dust extractor has simple structure, easy to manufacture, installation and maintenance, equipment investment and operation cost is low, has been widely used in separation of solid and liquid particles from the air, or from the separation of solid particles in the liquid .Under normal operating conditions, the centrifugal force acting on the particle is 5 ~ 2500 times that of gravity, so the efficiency of cyclone dust collector is significantly higher than that of gravity settling chamber .Based on this principle, a cyclone dust removal device with a dust removal efficiency of more than 90 % was successfully developed .In mechanical dust remover, cyclone dust collector is the most efficient one .It is applicable to the removal of non-viscous and non-fibrous dust, most of which are used to remove the particles above 5 mu m, and the parallel multi-tube cyclone dust collector device has 80 ~ 85% of the dust removal efficiency for the particles of 3 mu m. Selects the high temperature resistant, resistant to abrasion and corrosion of cyclone in the production of special metal or ceramic material structure, can be in temperature as high as 1000 ℃, pressure of 500 x 105 pa under the conditions of operation .In terms of technical and economic aspects, the pressure loss control range of cyclone dust collector is generally 500 ~ 2000Pa.Therefore, it belongs to the medium - effect duster and can be used for the purification of high temperature flue gas. It is a kind of dust collector widely used in boiler flue gas dusting, multistage dedusting and pre-dusting.