A liquid dispenser to supply liquid to an animal, comprising: a container configured to store liquid and having an upper opening; a pump having an inlet to suction liquid stored in the container and an outlet to discharge the liquid; a lid (300 and 400) seated on the container to cover the upper opening and having a hole through which liquid discharged from the pump flows; and a base to support the container , characterized in that the base includes: a fan having an intake and an outtake, a suction grill through which ambient air is suctioned via the intake of the fan , a plurality of exhaust vents through which air from the outtake of the fan is discharged, and a fan housing to which the fan is mounted, the fan housing having at least one inclined surface which is inclined outward from a top end to a bottom end, the bottom end being closer to the exhaust vents than the top end, wherein a heat sink is placed on the fan housing so as to have a vertical position corresponding to a vertical position of the exhaust vents provided in the base , the heat sink including a heat dissipation plate and a plurality of radiating fins which is provided on the fan housing , wherein ends of the radiating fins are aligned with the exhaust vents of the base , wherein the liquid dispenser further comprises a Peltier device mounted on the heat dissipation plate of the heat sink , a metal plate and an opening formed in a bottom of the container , wherein the metal plate is provided on top of the Peltier device and is exposed through the opening of the container . a container configured to store liquid and having an upper opening; a pump having an inlet to suction liquid stored in the container and an outlet to discharge the liquid; a lid (300 and 400) seated on the container to cover the upper opening and having a hole through which liquid discharged from the pump flows; and a base to support the container , characterized in that the base includes: a fan having an intake and an outtake, a suction grill through which ambient air is suctioned via the intake of the fan , a plurality of exhaust vents through which air from the outtake of the fan is discharged, and a fan housing to which the fan is mounted, the fan housing having at least one inclined surface which is inclined outward from a top end to a bottom end, the bottom end being closer to the exhaust vents than the top end, a fan having an intake and an outtake, a suction grill through which ambient air is suctioned via the intake of the fan , a plurality of exhaust vents through which air from the outtake of the fan is discharged, and a fan housing to which the fan is mounted, the fan housing having at least one inclined surface which is inclined outward from a top end to a bottom end, the bottom end being closer to the exhaust vents than the top end, wherein a heat sink is placed on the fan housing so as to have a vertical position corresponding to a vertical position of the exhaust vents provided in the base , the heat sink including a heat dissipation plate and a plurality of radiating fins which is provided on the fan housing , wherein ends of the radiating fins are aligned with the exhaust vents of the base , wherein the liquid dispenser further comprises a Peltier device mounted on the heat dissipation plate of the heat sink , a metal plate and an opening formed in a bottom of the container , wherein the metal plate is provided on top of the Peltier device and is exposed through the opening of the container . <EOS>