Abstract: The centrifugal spraying device comprises a fan, a rotating spray unit and a cyclone air flow. It consists essentially of a hollow cylinder, the lower part of which is drilled with spray apertures and whose upper part is provided with flats with recesses against which are fixed blades comprising a cylindrical root extended by a threaded rod provided with a nut. The hollow cylinder is fed by injectors drilled with nozzles and is connected to the output shaft of the drive motor by means of a hollow shaft. The inner wall of the hollow cylinder is separated vertically by a collar located just above the first row of spray apertures. Main application: treatment of crops.