High-density resistivity method electrode suitable for open iron mine stope

The invention discloses a high-density resistivity method electrode suitable for an open iron mine stope. The electrode comprises a hollow rod body and a sunshade, wherein a hammering cap is arrangedat the top end of the hollow rod body, a wire outlet hole is formed in the hollow rod body and located below the hammering cap, and the sunshade is arranged below the wire outlet hole; the bottom endof the hollow rod body is a ground insertion end and is of a triangular pyramid structure; the sunshade is in a funnel shape, a water injection hole is formed in the hollow rod body and located at thebottom of the inner side of the sunshade, a pyramid surface of the ground insertion end of the hollow rod body is provided with a water outlet hole, and the water injection hole communicates with thewater outlet hole through a water conduit; three springs uniformly distributed in a circumferential direction are installed in a central hole channel of the ground insertion end of the hollow rod body, one end of each spring is