A cleaner of the present disclosure comprises: a suction part; a main body comprising a body and a body cover for opening and closing the lower side of the body, the body comprising a cyclone part for separating dust from dust masses suctioned through the suction part and a dust container for storing the dust separated by the cyclone part; a handle part coupled to the main body; a filter part disposed inside the body, and filtering air, separated from the dust in the cyclone part; a movable part capable of moving inside the body along a space between the outside of the filter part and the inner circumferential surface of the body; an operation part disposed at the outside of the main body to move the movable part; and a delivery part penetrating through the main body, and connecting the movable part to the operation part.