The invention relates to an impacting type water bath washing device with a high speed sprayer and a washing method. Conventional dust catchers cannot remove toxic and harmful components in gas, and can easily cause reentrainment of dust by improper disposal, what needs to be noted is that when dust-containing gas or high temperature gas with high relative humidity is processed, anti-condensationmeasures needs to be taken, or else, the phenomena of dust caking and pipeline blocking easily occur, which has certain influence on work, and also brings unnecessary economic loss. The impacting typewater bath washing device with a high speed sprayer comprises a dust removal cylinder (12), wherein a water discharge pipe (10) is arranged at the lower part of the dust removal cylinder; a water supply pipe (1), an overflow pipe (11), a manhole (3) and an exhaust pipe (7) are respectively arranged at two ends of the dust removal cylinder; and a group of washing holes (5) are formed at the upperpart of the dust removal cylinder. The impacting type water bath washing device with high speed sprayer is applied to a dust removal device.