Air filter element with multi-layer structure

The utility model discloses an air filter element with a multi-layer structure, and relates to the technical field of air filter elements, in particular to the air filter element with the multi-layer structure, which comprises an upper end cover, a lower end cover and a filter component arranged between the upper end cover and the lower end cover, and the filter component comprises an inner layer component, an outer layer component and a sponge filter layer. The inner-layer assembly comprises an inner framework and an inner-layer filtering layer, the outer-layer assembly comprises an outer framework and an outer-layer filtering layer, and ozone is decomposed by utilizing a manganese-based catalyst through the cooperative arrangement of the multiple sponge filtering layers and manganese oxide; according to the air filter element with the multi-layer structure, the air filter element with the multi-layer structure has the effects of filtering particulate matters and liquid in the air and catalytically decomposi