A cleaner for both dry and wet use capable of sucking not only a solid but also a semisolid and liquid. The cleaner comprises a suction member; a fan for gas-liquid separation which rotates by operation of the suction member; a movable ring disposed above the fan so as to rotate together with the fan; a housing containing at least a part of an upper end side of the movable ring; and a tank below the housing, in which a liquid is stored and at least a part of a lower end side of the fan is contained, wherein through holes are formed in a circumferential wall of the housing at a region in which the housing and the movable ring overlap, ribs are disposed on a peripheral surface of the movable ring at a region where the housing and the movable ring overlap, the ribs make a gas from the through holes flow into a gap between the housing and the movable ring by rotation of the movable ring, and further, incline in a direction along which a gas current towards a side of the tank occurs in a gap between the housing and the movable ring, and a liquid which enters the gap between the housing and the movable ring is pushed back to a side of the tank by means of the gas current.