Electric furnace conducting cross arm

The utility model relates to an electric furnace conducting cross arm. Various types of electric furnace conducting cross arm in the prior art have defects that the side cross arm easily deforms, and welding seam water leakage accident points at four corners of the cross arm cannot be easily confirmed and repaired, so the service life of the cross arm is short, the spare part replacing rate is high, and the operation cost increase is caused. The electric furnace conducting cross arm is designed into form that a rectangular cross arm cavity formed by a copper steel composite plate and a carbon steel plate, a core pipe is arranged in the cross arm cavity in a penetrated way, the core pipe is fixedly bonded with the composite plate through a water separation plate, the adjacent composite plates are only welded and connected through a steel plate, and no copper welding seam covers a steel welding seam. The electric furnace conducting cross arm provided by the utility model has the advantages that the work require