FIELD: devices for spraying liquids.SUBSTANCE: invention relates to fluid and solvent sprayers and may be used in machine building, chemical and food industries. Vortex acoustic atomizer includes casing with a screw coaxially located in the lower part of the casing, and located in case upper part union with cylindrical opening for fluid supply connected to a diffuser, axially symmetric to casing and union. Screw is pressed into housing with the formation of a conical chamber located above the screw, coaxially with the diffuser, and connected with it in series. Screw is made solid. Outer surface of the screw consists of two successively connected surfaces, one of which is at least one-way screw groove with right or left thread and is located inside the housing. Second smooth surface represents a body of revolution axisymmetrically connected with spraying disc located perpendicular to body axis to extend beyond casing bottom end. Both straight line and n-order curve may make a generating line of said surface. S
