Metal graphite sealing floating ball valve

The utility model provides a metal graphite sealing floating ball valve which comprises a valve body, an end cover, a ball body and a driving main shaft. The valve body is provided with a containing cavity with an opening in one end. A flow channel is further arranged and penetrates through the containing cavity, the valve body and the end cover. A first settlement hole is formed in the end side, facing the valve body, of the end cover. The outlet valve seat is embedded in the first settling hole; the two side surfaces of the outlet valve seat abut against the surface of the ball body and the inner wall surface of the first settlement hole correspondingly. The second settling hole is formed in the bottom of the accommodating cavity; the opening of the second settling hole and the opening of the accommodating cavity are in the same direction; an inlet valve seat and a graphite sealing ring; the graphite sealing ring is sleeved on the inlet valve seat and is jointly embedded into the second settling hole; the s