Natural air brake resistor box applied to subway vehicles

The utility model discloses a natural air brake resistor box applied to subway vehicles. The natural air brake resistor box applied to subway vehicles comprises a box body and a resistor element arranged in the box body; cover plates are arranged around the box body; the lower part of the front cover plate and the lower part of the rear cover plate of the box body are respectively provided with meshes I and the upper part of the left cover plate and the upper part of the right cover plate of the box body are respectively provided with meshes II; the upper cover plate of the box body adopts a full closed structure, the lower cover plate of the box body adopts a full mesh structure; when the vehicle is operated, cold air enters the box body by only passing the meshes I in the lower part of the front cover plate, an air inlet guide plate arranged below the front cover plate and the meshes of the lower cover plate, while most braking heat is dissipated by the meshes II in the left cover plate, the meshes II in th