Preparation method of iron ore powder cold-pressed briquette and application of iron ore powder cold-pressed briquette

The invention discloses a preparation method of an iron ore powder cold-pressed briquette and application of the iron ore powder cold-pressed briquette, coarse-grain iron ore powder, iron ore concentrate and factory iron-containing solid waste are prepared into the iron ore powder cold-pressed briquette used for a blast furnace or a smelting reduction furnace through cold consolidation in a mode of not generating pollutants, recycling of iron-containing resources is achieved, environmental pollution is reduced, and the iron ore powder cold-pressed briquette is suitable for being used in a blast furnace or a smelting reduction furnace. And meanwhile, hydraulicity materials such as slaked lime, ordinary Portland cement and slag cement are adopted as binders, and the addition amount of fluxing agents such as limestone and dolomite can be reduced during use, so that CO2 emission of the ironmaking process is reduced, and finally, the production cost is reduced, and environmental protection benefits, social benefit