The invention discloses a method for preparing secondary 
zinc oxide from 
oxygen pressure leached 
zinc smelting solid waste residues. The method comprises the following steps that 
oxygen pressure leached 
zinc smelting solid waste residues are dried until the 
water content is 15% or below, and the 
solid waste residues are granulated by using a granulator; the solid waste residues are mixed with limestone, 
quartz stone and reducing 
coal, and are sent to an 
oxygen-enriched side-blown furnace; oxygen-enriched air is blown into a furnace during 
smelting, and chemical reactions such as 
sulfur makingand slagging are completed; 
sulfur in the 
slag generates SO2, and the SO2 enters an acid making 
system through a 
flue gas pipeline to produce industrial 
sulfuric acid; the 
molten slag is blown by a fuming furnace, secondary zinc 
oxide products are produced from 
smoke dust, and the fuming furnace 
slag is subjected to innocent treatment. According to the method, the problems that the smelting solidwaste produced in the zinc-
oxygen pressure leaching process is difficult to stack and transport, valuable 
metal in the leaching residues cannot be recycled and the like are solved, and harmless treatment of the zinc-
oxygen pressure leaching smelting solid waste is achieved. The method has the advantages that valuable metals such as lead, zinc, 
indium, 
germanium and silver can be recovered, industrial-grade secondary zinc 
oxide products can be prepared, the technological process is simple, the 
recovery rate of the valuable metals is high, and the 
energy consumption is low.