The invention discloses a grading recovery system for waste lead storage batteries. The grading recovery system is used for carrying out pyrogenic process recovery on the waste lead storage batterieswith electrolytes discarded, and comprises a crushing and sorting tank and a spiral feeding machine, wherein the crushing and sorting tank comprises a crushing part and a sorting part which are sequentially arranged from top to bottom and communicate with each other; the crushing part is used for crushing the waste lead storage batteries into small fragments; the sorting part is used for separating plastic outer shells from lead cores of the crushed lead storage batteries; the spiral feeding machine is positioned on one side of the crushing and sorting tank and is used for conveying the lead cores obtained after sorting to a feeding device; the feeding device is used for conveying the lead cores to be sintered into a sintering furnace in order for sintering; a waste gas outlet and an air inlet are formed in the sintering furnace; and a waste gas treatment furnace is in a bottle shape, and is used for purifying waste gas generated by sintering to meet the purpose of environment friendliness. According to the grading recovery system for the waste lead storage batteries, by means of the combination of the mechanisms, the effects of the integrated sintering and recovery of the waste lead storage batteries and prevention of environmental pollution are achieved; and the grading recovery system is widely applied to the fields of energy conservation and environmental protection.