The invention relates to an anti-air-erosion dewatering regulating valve comprising a valve body, a valve seat, valve clacks and a valve rod. The valve seat is fixed in a valve cavity encircled by the valve body, the sealing surfaces of the valve clacks and the sealing surface of the valve seat form a main sealing pair, the valve rod drives the valve clacks straightly up and down, a orifice sleeve is fixedly arranged in a valve cavity at a medium inlet, the lower end of the orifice sleeve is abutted against the non-sealing surface of the upper end of the valve seat, the valve cavity at the medium inlet is divided into an inner portion and an outer portion by the orifice sleeve and the valve seat, multilayer sleeves are sleeved layer by layer to form the orifice sleeve, a gap is reserved between each layer of the lower portion of the orifice sleeve, a plurality of orifices are radially reserved on the sleeve wall of each sleeve layer, and external diameter surfaces of the valve clacks are slidingly matched with the inner diameter surfaces of the orifice sleeve. The anti-air-erosion dewatering regulating valve has the advantages of no erosion, small required executive force, reliable sealability, wear resistance, washout proof, simple structure, convenient mounting, long service life and the like. Erosion can be avoided under the working condition of big differential and the anti-air-erosion dewatering regulating valve can be driven by a small actuator.