The HNT series dust removal and desulfurization integrated equipment (composite mechanism high-efficiency dust removal and desulfurization device) is an environmental protection equipment that has both high-efficiency dust removal and harmful gas purification functions. It has low investment, low operating costs, and small footprint. It has been listed as a national key environmental protection practical technology. Currently, three product series, HNT-1, HNT-2, and HNT-3, have been successfully developed, which are suitable for flue gas dust removal, desulfurization, smoke removal, and other flue gas purification treatments of 1-220 ton industrial boilers and kilns.