Pulse bag filter is in MC-I type, based on the new and improved efficiency pulse jet bag filter. In order to further improve the MC-I type pulse bag filter, the picture has been modified, MC- changed after type II pulse bag filter retains the clean and efficient MC-I type, large gas processing capacity, stable performance, long bag life, easy operation, low maintenance workload and other advantages. dusty gas from the air inlet into the dust in the next box, dusty gas through the bag into the upper cabinet process because of the role of the various effects of the dust bag is separated from the gas, dust is adsorbed on the bag, and the gas is passed through the bag into the venturi passage the box from the exhaust outlet. Dusty gas purification process through the bag, with the increase of time and accumulate dust bag attached more and more, to increase in a bag of resistance, resulting in decreasing the amount of gas through the bag.