Portable square ball valve

The invention discloses a portable square ball valve belonging to the technical field of a ball valve. The square ball valve is mainly used for solving the problems of poor sealing performance, narrow applicable scale, complex operation, and heavy weight of the existing ball valve. The portable square ball valve is characterized by comprising a square valve body, a hollow ball body, a sealing base, a sealing ring, a valve rod and a spanner; the hollow ball body is placed in the square valve body; a sealing ring with a small ditch and a sealing base are arranged between the square valve body and the hollow ball body; the spanner is connected with the hollow ball body through the valve rod; a wear reducing cushion is arranged between the spanner and the square valve body; and both ends of the square valve body clamp the square flange respectively by using four connecting bolts. The portable square ball valve has the advantages of being light in weight, convenient to operate, good in sealing performance, good in