Composite tower with vertical grounding down wire in center

The utility model relates to a composite tower with a vertical grounding down wire in the center. The ground wire cross arm on the top part of the tower adopts metal materials, the grounding down wire is led from the center of the ground wire cross arm and is vertically led down to be grounded from the center of the composite tower, and if the lower part of a tower body is steel tubes, the grounding down wire can be directly connected onto the steel tubes to be grounded. Since the insulating strength of the composite tower wall is utilized by the utility model, the insulating strength of lightning impulse resistance of the wire is enhanced, the phenomenon that the grounding down wire is in short circuit with the composite tower body is avoided, and the insulating effect of the composite tower body is realized; and since the grounding down wire is penetrated from the inner side of the tower, the problem that the grounding down wire is damaged by external forces such as strong wind because of being exposed outside is avoided, the structure is simple and the realization is easy.