The invention relates to a physical lead-removing method for lead-containing dedusting ash. The method comprises the following steps: introducing lead-containing dedusting ash into an air classification-air and magnetic sorting system and separating large-grain dedusting ash out through air classification so as to obtain an air-separated iron ore concentrate; separating magnetic materials in fine-grain dedusting ash out through air and magnetic sorting so as to obtain a magnetically-sorted iron concentrate; and directly returning the air-separated iron ore concentrate and the magnetically-sorted iron concentrate to sintering and smelting procedures, wherein dry tail ash captured by a bag-type dust collector is lead-rich ore powder and can be used as a raw material for extraction of lead. The physical lead-removing method overcomes the problems of low cost performance of treatment, wasting of resources and energy, high treatment cost, low recovery rate of total iron and the like duringtreatment of lead-containing dedusting ash with conventional physical lead-removing methods; and the method provided by the invention turns waste lead-containing dedusting ash into the value and substantially increases the economic value of the product.