Abstract: A rotary burner for liquid fuels includes a casing having a nozzle in which is rotatably mounted a fuel atomizer. The fuel atomizer is made in the form of a cup, which together with an outlet portion of the nozzle forms an annular convergent channel connected to a fuel supply means. On the external surface of the cup, near to an edge thereof, a circular row of vanes is mounted, the vanes being shaped as wedges whose bases face the edge of the atomizing cup.