A cleaner comprising: a suction part; a main body including a cyclone part configured to separate dust from air suctioned through the suction part and a dust container disposed under the cyclone part and configured to store the dust separated by the cyclone part; a filter part disposed in the cyclone part and configured to filter air in a process where dust separated from air passes through the filter part; a movable part movably disposed in the cyclone part, the movable part including a cleaning part configured to clean an outer perimeter of the filter part in a movement process; a manipulation part disposed outside the main body and manipulated for moving the movable part; and a transfer part passing through the main body and connecting the movable part to the manipulation part, wherein the movable part stands by at a standby position which does not surround a perimeter of the filter part in the cyclone part in a dust separating process, when the manipulation part is manipulated, the movable part moves and the cleaning part removes dust from an outer surface of the filter part, and the movable part includes a recessed portion (747, 757, 767) recessed in a direction away from the suction part, at least a portion of the recessed portion (747, 757, 767) facing the suction part, characterized in that the movable part further comprises: a frame configured to support an outer circumference surface of the cleaning part; and a core part configured to support an inner circumference surface of the cleaning part and coupled to the frame, and the recessed portion (747, 757, 767) is provided at a position corresponding to each of the frame, the core part, and the cleaning part. a suction part; a main body including a cyclone part configured to separate dust from air suctioned through the suction part and a dust container disposed under the cyclone part and configured to store the dust separated by the cyclone part; a filter part disposed in the cyclone part and configured to filter air in a process where dust separated from air passes through the filter part; a movable part movably disposed in the cyclone part, the movable part including a cleaning part configured to clean an outer perimeter of the filter part in a movement process; a manipulation part disposed outside the main body and manipulated for moving the movable part; and a transfer part passing through the main body and connecting the movable part to the manipulation part, wherein the movable part stands by at a standby position which does not surround a perimeter of the filter part in the cyclone part in a dust separating process, when the manipulation part is manipulated, the movable part moves and the cleaning part removes dust from an outer surface of the filter part, and the movable part includes a recessed portion (747, 757, 767) recessed in a direction away from the suction part, at least a portion of the recessed portion (747, 757, 767) facing the suction part, characterized in that the movable part further comprises: a frame configured to support an outer circumference surface of the cleaning part; and a core part configured to support an inner circumference surface of the cleaning part and coupled to the frame, and the recessed portion (747, 757, 767) is provided at a position corresponding to each of the frame, the core part, and the cleaning part. a frame configured to support an outer circumference surface of the cleaning part; and a core part configured to support an inner circumference surface of the cleaning part and coupled to the frame, and the recessed portion (747, 757, 767) is provided at a position corresponding to each of the frame, the core part, and the cleaning part.