Sintering method of solid-free fossil fuel based on multi-component gas medium and waste biomass coupling heat supply

The invention discloses a solid-free fossil fuel sintering method based on multi-component gas medium and waste biomass coupling heat supply, and the sintering method comprises the following steps: completely replacing fossil fuel with biomass fuel, mixing the biomass fuel with sintered ore raw materials, granulating, distributing the obtained granules, and igniting and sintering in a sintering machine; in the sintering process, according to the difference of heat distribution of different areas of a material layer, the proportion of combustible and combustion-supporting components in gas media and the temperature of hot waste gas are comprehensively regulated and controlled, different multi-component gas media are guided into different areas respectively, sufficient heat is provided for material sintering, the matching performance of material layer heat transfer and fuel combustion can be regulated and controlled, and the sintering efficiency is improved. According to the method, the heat distribution of a m