Method for recycling zinc resources in lead smelting system

The invention provides a method for recycling zinc resources in a lead smelting system, which comprises the following steps of: controlling a smelting atmosphere, increasing the feeding proportion of a zinc-containing material in an oxidizing furnace, and producing high-zinc liquid lead slag and cadmium-containing soot; when cadmium in the cadmium-containing soot is larger than or equal to 10%, the cadmium-containing soot serves as high-cadmium soot to enter a cadmium recovery system, and zinc and cadmium are recovered through a wet method; the high-zinc liquid lead slag is enriched in the reduction furnace to produce high-zinc reduction soot (namely secondary zinc oxide soot) and low-lead reduction slag; the high-zinc reduced soot is subjected to slurrying and acid leaching to produce lead slag and a zinc sulfate solution, the lead slag is returned to be smelted, the zinc sulfate solution is subjected to purification and other processes to obtain a tertiary zinc sulfate solution, and different zinc chemical