Duster

The utility model discloses a duster, this duster includes: flushing part spare, flushing part spare has a cavity cavity, the one end of flushing part spare be provided with with around there being aplurality of doctor -bars, form the blowdown space between flushing part spare and a plurality of doctor -bar around the inlet of cavity intercommunication, flushing part spare, flushing part spare isused for having the space between the adjacent doctor -bar to the blowdown space liquid of blowing out, and doctor -bar first is held to the second and hold the arc to the evagination, the cartridgefilter, the first end of cartridge filter is connected in the second end of doctor -bar, and cartridge filter and blowdown space intercommunication were provided with the filtration pore on the section of thick bamboo wall of cartridge filter, and the second end of cartridge filter is provided with the back cover. The utility model provides a duster can improve the effect of cleaing away to deposit in the well. 本实用新型公开了种清除器