After the dust collector draws in the dust air through the fan, it passes through the first layer, hollow ball or plastic honeycomb. Under the action of water mist, the fine dust in the dusty air is fully wetted, collided and agglomerated to form a dust water mixture, which flows to the water tank under the action of spraying. The incompletely purified air is filtered by water mist with honeycomb paper and then discharged above the machine to realize the dust removal and purification of the dusty air flow. The dust treatment effect of the equipment is more than 95%. Low energy consumption, low operating cost, is a high quality and economic dust collector.