Metal sealing ball valve

The invention relates to a metal sealing ball valve, and belongs to the technical field of oil and gas conveying pipeline sealing equipment. The metal sealing ball valve is composed of a left valve body, a right valve body, a valve rod, a ball body, a sealing assembly, a left sealing piece and a right sealing piece. The right valve body is installed on the left valve body through a locking bolt, the left sealing piece is installed on the left valve body, the right sealing piece is installed on the right valve body, and the ball body is arranged between the left sealing piece and the right sealing piece and is in sliding contact connection with the left sealing piece and the right sealing piece. The ball body is sleeved with the valve rod in a matched manner, one end of the valve rod penetrates the right valve body and extends to the outer side of the right valve body, and the part, extending to the outer side of the right valve body, of the valve rod is sleeved with the sealing assembly. When the ball valve i