Water purifier based on multi-layer detachable filter element structure

The invention discloses a water purifier based on a multi-layer detachable filter element structure in the technical field of water purifiers, which comprises a filter element, a filter shell mounted on a water pipeline and used for filling the filter element so as to filter water in the water pipeline, and a pressure stopping piece mounted in the filter shell and used for limiting the filter element, and the filter cover body covers the filter shell and is used for sealing the inner cavity of the filter shell. One to five filter elements can be installed in the inner cavity of the filter shell according to needs, when the filter elements need to be replaced, the filter cover body is directly detached, the filter elements in the inner cavity of the filter shell can be replaced, and the filter shell does not need to be detached from a water pipeline. In addition, the corresponding filter element can be replaced according to needs, and the filter element which can be effectively used does not need to be replace