摘要：【中文】本发明提供一种多级钢铁行业VOCs净化塔，所述VOCs净化塔由塔底至塔顶依次包括单环芳烃冷却段、含硫化合物吸收段以及含氧化合物冷凝段。所述VOCs净化塔通过合理的设计，实现了对钢铁行业VOCs主要物质的分级处理，且各段相互配，进一步提高了净化能力。 【EN】The invention provides a multi-stage steel industry VOCs purification tower which sequentially comprises a monocyclic aromatic hydrocarbon cooling section, a sulfur-containing compound absorption section and an oxygen-containing compound condensation section from the bottom to the top of the tower. VOCs purifying column has realized the hierarchical processing to iron and steel trade VOCs main material through reasonable design, and each section is mutually supported, has further improved the purifying capacity.