PL pulse jet dust collector is small, but with high dedusting efficiency. It is composed with fan, filter, ash cleaning part and ash silo. Each part is installed in vertical framework with steel plate. The way of cleaning dust is pulse blowing with good effect and high purifying rates. Structure: 1.centrifugal fan and silencer---big air volume, high pressure and low noise 2.sector filter bag with 208 industrial polyester filber needled felt, spring steel wire mesh in each bag. 3.ash cleaning method:automatic control and manual control. 4.ash silo has 3 types:A, B and J type.