Water leakage prevention device for water purifier

The utility model discloses a water leakage prevention device for a water purifier, which comprises a storage tank and a machine body, a storage battery is fixedly arranged at the front end of the storage tank, a buzzer is fixedly arranged at the front end of the storage battery, and a connecting pipe is fixedly connected between the storage tank and the machine body through a flange plate. A shell is fixedly installed at the outer side end of the connecting pipe connecting flange, a penetrating hole is formed in the lower end of the shell, a sealing mechanism is arranged in the storage tank, and an extending block is fixedly installed on the inner side wall of the shell. When a connecting position leaks, a leaked water source is located at the upper end of the movable ring and extrudes the movable ring to move downwards along the connecting pipe, so that the first spring is extruded until the control switch is extruded, the buzzer is powered on and started to remind a user of leakage at the connecting positi