The present disclosure relates to a water purifier. A water purifier according to an aspect includes a coolant tank in which a coolant is stored, a cold water pipe accommodated in the coolant tank, an evaporator accommodated in the coolant tank, a stirring member placed inside the coolant tank to stir the coolant, and a partition member accommodated inside the coolant tank to partition an inner space of the coolant tank into a first space and a second space, wherein the evaporator is located in the first space, and the cold water pipe is located in the second space.