It uses chemically stable, high temperature resistant solid particles (such as quartz sand, etc.) to form a filter layer to filter dust. Its outstanding advantages are high temperature resistance, corrosion resistance, insensitivity to flue gas components, high dust removal efficiency, which can reach 99%, and can remove dust particles above 10 μm. In terms of high temperature dust removal, viscous or weakly viscous dust collection, and explosive and combustible dust collection, particle layer filtration and dust removal shows unique advantages.