An air cleaner may include a case having a discharge port formed at an upper side and vertically open; a blower fan disposed inside of the case, and blowing air inside the case toward the discharge port; a discharge body disposed on an upper side of the case in which the discharge port is formed, and having a discharge passage that guides the air, blown by the blower fan, toward the discharge port; a discharge guider rotatably disposed on an upper side of the discharge body, and having a plurality of grills bent so as to guide air, flowing upward through the discharge passage, in a radially outward direction; and a motor that rotates the discharge guider disposed on the discharge body.