Separable pillar type lightning arrester with good sealing effect

The invention discloses a separable pillar type lightning arrester with a good sealing effect, and belongs to the field of lightning arresters. Comprising a lightning arrester component group, the lightning arrester component group comprises a silicone rubber skirt sleeve, a filling cylinder is arranged in the silicone rubber skirt sleeve, one end of the silicone rubber skirt sleeve is provided with an inner connecting end, a sealing ring is arranged outside the inner connecting end, one side of the sealing ring is provided with a metal end, and the other side of the sealing ring is provided with an outer connecting end. An end threaded rod is arranged in the metal end, an end nut is arranged at one end of the end threaded rod, a top end threaded rod is arranged on one side of the metal end, a cushion block is arranged outside the top end threaded rod, and a mounting frame body is arranged on one side of the cushion block. According to the invention, pollutants or moisture outside the lightning arrester canno