SX/G-D type series wet type efficient desulfurization dust device is used pressure type three level dust desulfurization and Terminal dehydration principle, using water (alkaline absorption liquid) for media, makes flue gas in the of dust and SO2 gas, harmful material and water (alkaline absorption liquid) step by step full contact, formed has efficient capture and absorption role of liquid fog layer, through solid, and liquid, and gas biography quality reaction, will flue gas in the of dust and SO2 completely removal.