FIELD: devices for spraying liquids.SUBSTANCE: invention relates to fluid and solvent sprayers and may be used in machine building, chemical and food industries. Swirl atomizer comprises case with screw aligned in the case bottom section, and located in case upper part union with cylindrical hole for fluid supply connected with diffuser, axially symmetric to case and union. Screw is pressed into the body to make cylindrical chamber above said screw and aligned with the diffuser and communicated therewith. Screw is made solid. Outer surface of the screw is two serially connected surfaces, one of which is at least a single-threaded groove with a 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. Surface of the spraying disc extending beyond the casing bottom
