Multifunctional rotational flow platform fuel gas system

The utility model discloses a multifunctional rotational flow platform fuel gas system which comprises a furnace seat, a gas distribution seat and a fuel gas nozzle, the gas distribution seat is mounted above the furnace seat; the furnace seat is provided with an inner ring gas mixing cavity and an inner ring injection pipe; the gas outlet end of the inner ring injection pipe is communicated with the inner ring gas mixing cavity, and the gas nozzle is aligned to the gas inlet end of the inner ring injection pipe; the inner ring gas mixing cavity is of an annular spiral structure, and the size of the section of the inner ring gas mixing cavity is gradually reduced in the fuel gas flowing forward conveying direction. According to the annular spiral structure of the inner ring gas mixing cavity, rotation acceleration and compression are carried out on inner ring gas in a limited arrangement space of a burner furnace base, the mixing ratio of the inner ring gas is effectively improved, a design frame of the injec