Three-way valve body convenient for detecting air tightness

The utility model discloses a three-way valve body convenient for detecting air tightness, which comprises a valve body, two groups of air leakage detection devices and two groups of sealing mechanisms, and the valve body is provided with an air inlet and two air outlets which are communicated with each other; the valve body is provided with two detection holes, the two detection holes are communicated with the two air outlets respectively, the two sets of air leakage detection devices are arranged on the two air outlets respectively, and the air leakage detection devices are communicated withthe air outlets through the detection holes and used for detecting air tightness. And the two groups of sealing mechanisms are respectively arranged on the two groups of air leakage detection devicesand realize opening and closing of the detection holes under the action of external force. The mechanism is simple, and the sealing performance of the three-way valve can be detected without openingthe valve body of the three