The invention discloses an air purifier filter element convenient in disassembling and assembling. The air purifier filter element comprises an upper clamping shell and a lower clamping shell, whereinthe upper clamping shell and the lower clamping shell are hinged through a hinge; the inner wall of the upper clamping shell and the inner wall of the lower clamping shell are respectively provided with a placement groove; a high-density filter screen, an HEPA (High Efficiency Particulate Air) filter screen, a formaldehyde filter screen and a nanoscale filter screen are arranged in each placementgroove in sequence; one end of the upper clamping shell and one end of the lower clamping shell are respectively provided with an external thread; the outer side of each external thread is in screw joint with a fixing ring; the middle of each fixing ring is connected with a spacing rod through a strut. According to the air purifier filter element, the high-density filter screen, the HEPA filter screen, the formaldehyde filter screen and the nanoscale filter screen can be respectively arranged in the upper clamping shell and the lower clamping shell to adsorb and filter different pollutants, so that the air purifier filter element has wider applicability, the filter screens are clamped in the placement grooves and are inserted and fixed through the spacing rods, and the upper clamping shell and the lower clamping shell are subjected to screw joint and fixing through the fixing rings so as to be convenient for integrally disassembling and assembling and favorable for replacing and cleaning the filter screen in a later period.