Abstract: The wet dedusting technology is an important means of air purification, but the traditional wet scrubber has become more and more difficult to meet people's needs with the deterioration of air pollution and the rising emission standards of the smoke, and many improved wet scrubber with high performance is born because of it. The efficient wet scrubber is a new invention of the wet dust collector which is the improved and innovational for the traditional impacting duster. Through the research about the removal of a phosphate rock dust, it can be found that this duster has many advantages such as the high dedusting efficiency、energy saving and simple operation、small workload of the equipment maintenance etc, has a good benefit on economic and environment, and has wide application prospect in many industries such as mining、coal、metallurgy etc.