Filter element assembly module and particle catcher

According to the filter element assembling module and the particle catcher, a first connecting assembly and a second connecting assembly are arranged to be in butt joint, a filter element is clamped and positioned in the first connecting assembly and the second connecting assembly, meanwhile, flange plates are connected to the two ends of the first connecting assembly and the second connecting assembly respectively, and the first connecting assembly and the second connecting assembly are coaxially and accurately in butt joint based on a hoop; the butt joint is sealed, then the fastening assembly is arranged to lock the first connecting assembly and the second connecting assembly in the axial direction, the sealing and detachable functions of the filter element are achieved, a user can independently disassemble and replace the filter element in the equipment, the equipment does not need to be wholly replaced, and the economical efficiency of equipment use is improved. Meanwhile, the first connecting assembly a