Anti-blocking large-spread-angle transverse rotational flow purification water curtain

The utility model belongs to the technical field of coal mine underground dust prevention, and particularly relates to an anti-blocking large-spread-angle transverse rotational flow purification water curtain. The device comprises two water curtain rods, the water curtain rods are connected to a roadway top plate, the two water curtain rods are detachably connected, the free end of one water curtain rod is connected with an underground static pressure water source, and a water flow channel is formed in the water curtain rod; one side of the water curtain rod is connected with a plurality of transverse rotational flow atomizing spray heads, each transverse rotational flow atomizing spray head comprises a spray head and a spray head cap, a conical first spray hole is formed in a main body of each spray head, a second spray hole and an atomizing hole which are communicated with each other are formed in each spray head cap, the shape of each second spray hole is matched with that of each first spray hole, each at