The invention discloses an efficient dust removing apparatus, which comprises a box body, wherein the left side and the right side of the box body are respectively provided with a wind inlet, the windinlet position is provided with an exhaust fan, a rotary water spraying device is arranged inside the box body, the upper portion of the rotary water spraying device is provided with a rotation shaftand a water inlet pipe, the bottom portion of the box body is provided with a water pool, the right side of the water pool is provided with a water discharge port, the right side of the longitudinalbox body is provided with a water box, the water box is connected to the rotary water spraying device through a water pump and a water pipe, a filtering screen is arranged above the rotary water spraying device, an active carbon fiber filtering screen is arranged above the filtering screen, and the top portion of the box body is provided with a wind outlet. According to the present invention, by arranging the rotary water spraying device, the waste gas entering from the multiple wind inlets can be subjected to efficient dust removing, and the advantages of energy saving and environmental protection can be achieved.