Air conditioner and exhaust device thereof

The invention discloses an exhaust device of an air conditioner. The exhaust device comprises an exhaust cylinder rotatably disposed above the air conditioner and a drive device driving the exhaust cylinder to rotate. The exhaust cylinder is provided with an exhaust hole which is provided with an air guide plate which can guide air up and down. Therefore, by the use of the exhaust device, blowing range of the air conditioner can be enlarged effectively. The invention further discloses the air conditioner comprising the exhaust device.