The water mist sprayed by air-driven fog gun has small diameter and high density. When it comes into contact with dust, it will form a wet fog, which can quickly suppress dust particles. Whether it is an open yard or an open construction site, it can be very practical, simple to operate, safe and reliable, and can be operated manually or manually. The remote control spray can rotate the spray in both horizontal and vertical directions to ensure that the area covered by the mist can be maximized and the water consumption is saved by about 75% compared with other dust suppression spraying equipment.