<p>The tuyere raceway within a blast furnace holds pivotal function in the energy supply and the downward movement of burden materials throughout the ironmaking process. The evolution of this phenomenon, along with its physicochemical reaction characteristics, significantly influences the operational stability of blast furnaces and contributes to the extended service life of blast furnace tuyeres. Drawing upon empirical data from a blast furnace at Jiuquan Iron and Steel (Group) Co., Ltd., a computational fluid dynamics–discrete phase model coupled mathematical framework was formulated to scrutinise the dynamic transformation process and pulverised coal combustion characteristics within the tuyere raceway at the particle level. By examining the impact of various tuyere parameters on the raceway state, optimal tuyere operational conditions were identified to simultaneously enhance tuyere longevity and maximise the efficiency of pulverised coal combustion. The findings demonstrated that elevating blast temperature, blast volume, oxygen enrichment levels contributed to an increase in raceway temperatures and an enhancement in coal burnout rates. In conjunction with actual industrial conditions, it is suggested that the blast temperature be maintained at approximately 1473 K, the blast volume at around 4500 m³/min, and the oxygen enrichment rate at roughly 4 pct. Under these optimised conditions, fixed carbon burnout can attain 76.25 pct, volatile matter burnout can reach 100 pct, and overall coal burnout can be as high as 79.64 pct. Furthermore, the high-temperature region within the raceway becomes relatively concentrated and shifts further from the tuyere, thereby effectively mitigating the thermal load imposed on the tuyere front and fostering tuyere durability.</p>