To provide a water guard constructed water dispenser to the water outlet and the inflow of air of water can prevent bacteria flowing into smoothly done with tap water vessel . A water guard of the hot and cold water dispenser according to the present invention , an air inlet for supplying air into the raw water container opening the stopper of the outlet of the raw water container is placed in the water dispenser , into the raw water container a projecting tube having a water outlet which is being discharged water begins , the float moves up and down by the water level in the water storage tank installed in the water dispenser , the is installed inside the projection tube is linearly moved in the vertical direction by vertical movement of the float and to include a flood disconnecting means for intermittent discharge of the water contained in the raw water container , and is . [ Selection Figure ] Figure 1
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