Water drinking device applied to livestock fences

The utility model provides a water drinking device applied to a livestock fence. The water drinking device comprises a shell, a water drinking device and a drainage pipe. A water drinking space and awater collecting space are formed in the shell, the water collecting space is located below the water drinking space and communicated with the water drinking space, and a water drinking hole is formedin the shell and communicated with the water drinking space. The drinker comprises a water inlet pipe and a drinking head connected with the water inlet pipe, the water inlet pipe is connected with the shell, and the drinking head is located in the drinking space; one end of the drain pipe is connected with the shell and communicated with the water collection space, the drain pipe is communicatedwith a U-shaped pipe, the U-shaped pipe is located outside the shell, and a U-shaped opening of the U-shaped pipe faces upwards. The water drinking device can prevent water from dripping into the livestock fence to be mixed wi