The utility model provides a head is distinguished to water, include: but shell, water supply connector, flange, spring, first supporting shoe movable sealing ring group, fender ring, second supporting shoe, inner skleeve, snap ring, third supporting shoe, fourth supporting shoe, wherein, the shell is the tubulose, and the water supply connector is on the shell and be close to the flange, communicates with shell cavity, head is distinguished to water one end is the flange, and the other end is for keeping off the ring, be provided with the inner skleeve in the shell, between keeping off in the middle part of ring and the shell, be provided with the supporting shoe between inner skleeve both ends department, inner skleeve and the shell, it has the snap ring to be close to supporting shoe department on the inner skleeve inner wall, inside the inner skleeve, also be provided with the supporting shoe between the supporting shoe, snap ring, but be provided with movable sealing ring group in the inner skleeve between snap ring and the supporting shoe, but the spring has been installed in the shell in the cavity that shell, supporting shoe, snap ring movable sealing ring organized, enclosed. The utility model has the characteristics of fast, efficient and can survey etc. The rock stratum state, but wide application in mining field.