NOVELTY - The apparatus for generating a pure steam torch by microwaves for reforming of hydrocarbon fuels e.g. methane, comprises a discharge tube (70) with a microwave radiation generator for forming a pure steam-plasma torch with an ignition device (90), a steam supplier (80) for swirl gas and a tapered wave guide, and a system for injecting hydrocarbon fuels into the steam-plasma in the discharge tube for reforming the hydrocarbon fuels by high-temperature steam plasma. The steam supplier provides a swirl-gas passage between an internal space of discharge tube and an outside of upstream block.    USE - The apparatus is useful for generating a pure steam torch by microwaves for reforming of hydrocarbon fuels such as methane, ethane, propane, butane in gaseous state, gasoline, diesel, kerosene, bunker oil, waste oil in liquid state, coal powders and/or carbon powders in solid state (claimed).    ADVANTAGE - The apparatus is compact and portable, and is capable of effectively and economically generating pure steam torch without additional system.    DETAILED DESCRIPTION - The apparatus for generating a pure steam torch by microwaves for reforming of hydrocarbon fuels e.g. methane, comprises a discharge tube (70) with a microwave radiation generator for forming a pure steam-plasma torch with an ignition device (90), a steam supplier (80) for swirl gas and a tapered wave guide, and a system for injecting hydrocarbon fuels into the steam-plasma in the discharge tube for reforming the hydrocarbon fuels by high-temperature steam plasma. The steam supplier provides a swirl-gas passage between an internal space of the discharge tube and an outside of the upstream block with its internal hole in continuation to the internal space of the discharge tube. The swirl-gas passage is inclined toward downstream. The fuel injector system with a fuel nozzle is attached to a cylindrical structure installed on top of the discharge tube and equipped with exit of reforming gas. The upstream block under the discharge tube is made of stainless steel or compressed carbon for isolation from microwave influence. An INDEPENDENT CLAIM is included for a process for generating a steam-plasma torch by microwaves and reforming of hydrocarbon fuels.    DESCRIPTION OF DRAWING(S) - The diagram shows a cross-sectional view of a pure system torch energized by microwaves.    Discharge tube (70)    Steam supplier (80)    Swirl injector (82)    Ignitor (90)    Dielectric material. (93)