Desulfurization, denitration and dust removal equipment for flue gas of chemical plant

The utility model provides chemical plant flue gas desulfurization, denitrification and dust removal equipment which comprises a processing main structure box, a filtering device arranged on the left side of the processing main structure box, an outward turning sealing door arranged on the back face of the filtering device, an insertion type filtering device arranged in the filtering device, and a desulfurization, denitrification and dust removal processing furnace arranged in the processing main structure box. The outer surface of the left side of the desulfurization, denitrification and dust removal processing furnace is connected with a fan through a first guide pipe. According to the flue gas desulfurization, denitrification and dust removal equipment for the chemical plant provided by the utility model, the integration degree of each device is high, the filter device is externally designed, so that subsequent maintenance and cleaning are facilitated, the quality of chemical flue gas filtration and purifi