Subway lightning arrester

The utility model discloses a subway lightning arrester which comprises a resistor column, and the resistor column comprises an internal resistor disc core body and a silicon rubber jacket on the outer wall. The appearance of the silicone rubber outer sleeve is composed of a plurality of umbrella-shaped structures. An upper end cover and a lower end cover are arranged at the upper end and the lower end of the resistor column respectively, an upper wiring terminal is arranged on the upper surface of the upper end cover, and the upper wiring terminal is fixedly installed on a subway train power supply pull wire through a bolt; a lower wiring terminal is arranged on the lower surface of the lower end cover; the lower wiring terminal is fixedly installed on the grounding support through a bolt. According to the utility model, the structure is compact, and the problems of low passing rate and high residual voltage of the large-current impact tolerance test of the whole lightning arrester are solved; the silicone r