Drinking water dispenser

A drinking water dispenser for supplying drinking water from a detachable water container, comprising:

• a hot water tank heating and storing the drinking water supplied from the water container;
• a chilled water tank cooling and storing the drinking water supplied from the water container;
• a supplied pipe connecting the detachable water container with said hot water tank and said chilled water tank;
• a three-way connector having first, second and third ports, the first port being connected to the water container, the second and third ports being connected to said supply pipe through which the drinking water of the water container is supplied to said hot water tank and said chilled water tank, respectively;
• a sterilization system for sterilizing said hot water tank, said chilled water tank and said supply pipe by circulating hot water among them, said sterilization system comprising a connecting pipe connecting said hot water tank and said chilled water tank, a circulating pump and a circulating solenoid valve for controlling the circulation of hot water for sterilization;
• and
• a refrigerator in which the detachable water container is detachably provided and is cooled, said three-way connector being disposed in said refrigerator.