The utility model relates to a nitrogen gas burner is thoughtlessly hanged down in advance to percussion flow part, it includes the combustion head, this combustion head includes a cylindrical air runner, one sets up in the inside swirler of this cylindrical air runner, and this swirler includes outer loop, inner ring, the setting spinning disk and the central blunt body of setting at the inner ring centre bore between this outer loop and inner ring, one sets up the fuel nozzle that just lies in this cylindrical air runner inside in the outside of combustor swirler, and this fuel nozzle includes the fuel line and sets up in the fuel spout of this fuel line side.