NOVELTY - A vaporizing room (2) is connected to front end pipe port of cavity body of overheated room (4) by vaporizing methanol conveying piping (16). The back pipe of cavity of vaporizing room is connected with methanol fuel inlet pipe (1). The back end pipe port of cavity body of overheated room is connected with the back end pipe port of catalytic conversion generator (7) by methanol vaporizing steam outlet pipe (5). The front end pipe port of catalytic conversion generator is connected with hydrogen fuel conveying piping (10) of assistant conversion air chamber (12).    USE - Burner for converting liquid methanol into hydrogen fuel.    ADVANTAGE - Uses methanol as alternative fuel of liquefied petroleum gas thereby reducing reliance of industry on oil and also avoiding the pollution of combustion waste gas to environment. Improves efficiency for converting methanol to hydrogen. Improves safe. Structure of burner is made compact. Easy for miniaturization.    DETAILED DESCRIPTION - A burner head includes a shell which is opened on both front and back ends, a flame-rotating jet (14) set around the opening on front end of shell, direct current guide vanes (13) located in shell cavity for dividing cavity into front cavity combustion chamber (17) and back cavity assistant combustion air chamber, a burner nozzle (11) located in combustion chamber, an electronic ignition device (8) set close to burner nozzle and fixed on direct current guide vanes, an assistant combustion air inlet (15) set at back of shell and connected with assistant combustion air chamber and the hydrogen fuel conveying pipe set in assistant combustion air chamber whose front end runs through central cavity of direct current guide vanes and enters combustion chamber to be connected with burner nozzle. The burner basal body has cylindrical shell having closed front and back ends and a cylindrical cavity divided into five sealing cavity chambers by four concentric isolated walls from central axis to shell outside wall. The central cavity chamber has catalytic conversion generator, followed by hot oil electric heating room (18), overheated room, hot oil electric heating room (3) and vaporizing room.    DESCRIPTION OF DRAWING(S) - The drawing shows the schematic block diagram of the burner.    Methanol fuel inlet pipe (1)    Vaporizing room (2)    Hot oil electric heating room (3)    Overheated room (4)    Methanol vaporizing steam outlet pipe (5)    Catalytic conversion generator (7)    Electronic ignition device (8)    Hydrogen fuel conveying piping (10)    Burner nozzle (11)    Assistant conversion air chamber (12)    Direct current guide vanes (13)    Flame-rotating jet (14)    Assistant combustion air inlet (15)    Vaporizing methanol conveying piping (16)    Front cavity combustion chamber (17)    Hot oil electric heating room (18)