High-pressure air compressors in the steel industry are widely used in core processes such as blast furnace blowing, converter bottom blowing, and sintering conveying, representing one of the largest application areas for compressors. Compressed air accounts for 5%–15% of total energy consumption. Under harsh operating conditions of high temperature, high dust, and continuous operation, compressors must balance reliability, energy efficiency, and gas cleanliness.Steel smelting compressors are primarily used to provide compressed air to meet the needs of various equipment and processes in steel production, including pneumatic conveying, injection, cooling, purging, pneumatic instrument valves, and air motors