Blast furnace ironmaking coal injection system

The utility model discloses a blast furnace ironmaking coal injection system which comprises an ironmaking coal injection device and an environment-friendly cleaning device, and the ironmaking coal injection device comprises a coal injection pulverized coal bunker, a blast furnace distributor and a pulverized coal conveying pipeline, the environment-friendly cleaning device comprises an air input pipe, a bin top dust remover and gas conveying pipelines arranged between the air input pipe and the bin top dust remover, at least two gas conveying pipes are arranged in parallel, the gas conveying pipelines and the pulverized coal conveying pipelines are arranged in a one-to-one correspondence mode, and each gas conveying pipeline is provided with a gas on-off control valve. According to the blast furnace ironmaking coal injection system provided by the utility model, online cleaning of the pulverized coal filter is realized, and the technical problems that the existing pulverized coal filter cannot be cleaned onl