The invention discloses a clothing treating device, which comprises: a shell for forming the appearance of the clothing treating device; a clothing washing tank for containing the clothing disposed in the shell; a top cover capable of opening and closing disposed on the upper side of the shell; and an air breather acting as a channel connecting the outside and the inner side of the shell and being equipped with a filter capable of being demounted towards the top cover side. The clothing treating device can prevent moisture from staying in the device for long time, consequently can prevent themachine faults, foreign flavors and bacterial reproduction in the machine caused by the moisture.