The filter material of the filter cartridge type dust collector is a filter cartridge, and the hard filter material is folded into a tube shape, which can increase the filtering area, is short without a frame, and makes the dust collector more compact. The filter material adopts imported long polyester fiber with anti-condensation and good air permeability, and a layer of submicron ultra-thin fiber is attached to the filter material. The fibers on the adhesive layer on the surface of the filter material are closely arranged, and the extremely small sieve holes can block most of the submicron dust particles on the surface of the filter material, and the ultrafine powder and fibrous dust are not easy to pass through.