Provided is a liquid dispensing device. The liquid dispensing device includes a cylinder body coupled to a sink and at least one nozzle coupled to the cylinder body. The at least one nozzle may include a first liquid discharge nozzle coupled to an upper region of the cylinder body to extend horizontally, the first liquid discharge nozzle being configured to supply a drinkable liquid, such as a purified liquid, a heated liquid, or a cooled liquid. The at least one nozzle may a second liquid discharge nozzle coupled to the cylinder body to extend horizontally, the second liquid discharge nozzle being positioned to be spaced apart from the first liquid discharge nozzle to supply a non-drinkable liquid, such as a sterilizing liquid containing hypochlorous acid or other additive.