Abstract: An air cleaner includes a scrubber, a water purifier and a water feeder. The scrubber includes a housing being provided with a central tank and an air outlet. A barrel is disposed inside the housing so as to form a scrubbing room with the central tank. An air pump is disposed on top of the housing for pumping air into the scrubbing room via a pipe extending downward to the central tank so as to force scrubbing water contained in the central tank sprayed upward and scattered. One or a plurality of perforated middle barrels are disposed inside the scrubbing room in a manner coaxial with the central tank for dividing the sprayed water into fine drops. The water purifier have a filtering layer and an activated carbon part for purifying the scrubbing water. A water feeding means is disposed on the upper portion of the scrubbing room for supplying scrubbing water.