Lightning protection filtering assembly

The invention provides a lightning protection filtering assembly, which comprises a heat dissipation type filter shell body and a filtering circuit board, wherein the filtering circuit board is arranged in the filter shell body; a chamber for liquid circulation is formed in the outer wall of the filter shell body; the filtering circuit board is provided with a filtering circuit; the filtering circuit comprises a first inductor L1, a second inductor L2, a post-positioned filtering circuit and a protection indication circuit; and an overshoot voltage protection module is connected between everytwo of a positive input end, a negative input end and a reference ground end of the filtering circuit, and each overshoot voltage protection module comprises a piezoresistor and a hot-melting fuse which is independently arranged. According to the lightning protection filtering assembly provided by the invention, through forming the chamber for cooling liquid circulation in the surface of the filter shell body, the heat di