T-shaped inner-loop type three-way ball-valve valve element used for continuous circulating valve

The utility model relates to a T-shaped inner-loop type three-way ball-valve valve element used for a continuous circulating valve. The problem that in the prior art, mud circulation is forced to be stopped due to the fact that a mud circulation channel is interrupted when buckles are assembled on or disassembled from a drill rod in the existing conventional well drilling process is mainly solved. The T-shaped inner-loop type three-way ball-valve valve element is characterized in that a three-way valve ball is installed in the portion, in space defined by an upper valve body and a lower valve body, of the lower valve body, the two through sides of the valve ball are surrounded by a lateral plugging support and a lateral hole support, lateral combining gaskets are installed on the lateral plugging support and the lateral hole support, and the lateral plugging support, the lateral hole support and the lateral combining gaskets are surrounded by an inner loop; a plurality of threaded holes are formed in the inner loop, and the inner loop is fixedly positioned to the lateral plugging support and the lateral hole support through fastening screws installed in the threaded holes; two holes are formed in the portions, corresponding to the valve ball, of the lower valve body, a rotating pin is installed in one hole, a rotating buckling plate is arranged outside the rotating pin, and a lateral circulation block is installed in the other hole. By means of the T-shaped inner-loop type three-way ball-valve valve element used for the continuous circulating valve, the requirement for continuous circulation in the well drilling buckle assembling or disassembling process can be met.