<p>The injection of hydrogen-rich fuel into the blast furnace tuyere is highly significant for reducing carbon dioxide (CO₂) emissions. However, the hydrogen-rich fuel injection can lead to insufficient kinetic energy of the blast and reduce pulverized coal combustion rate. To solve these problems, a method of coherent jet of hydrogen-rich fuel was developed, and the combustion process of the hydrogen-rich fuel and pulverized coal was simulated by coupling computational fluid dynamics and discrete phase method (CFD-DPM) in blast furnace tuyere. The effects of hydrogen content on the distributions of gas velocity, temperature, and species in the reaction region were systematically analyzed. Results indicate that high-temperature and low-density flame can be generated around the tuyere through hydrogen-rich fuel, which effectively restrain the attenuation of blast energy. Meanwhile, the coherent flame heats the hot gas and pulverized coal at the outlet of the tuyere, which is conducive to enhance the temperature of the reaction region and the burning rate of pulverized coal. The increase in hydrogen content within the hydrogen-rich fuel leads to a gradual contraction of the CO₂ high concentration region at the center of the reaction region, while simultaneously expanding the high concentration region of water vapor (H₂O).</p>