Abstract: A compound filter bag dust collector equipment which integrates dust removal and lowtemperature denitration is introduced. The filter bag is treated by PP treatment agent and then coated with nanometer catalyst on the surface of the filter bag to form a compound filter bag. The purpose of dust removal and denitration is realized by a bag dust collector，and the process of flue gas short-range dust removal and denitration is realized

Key words: Dust removal, Low-temperature denitration, Compound filter bag dust collector, Short-range