The invention discloses an easy-to-disassemble water tank water outlet head mechanism with the filtering function. The mechanism comprises a boiled water tank; the mechanism is characterized in that awater outlet head penetrating out of the boiled water tank in a sealed mode is installed at the bottom of the boiled water tank, the water outlet head is provided with a through hole used for allowing water flow to pass through, a filter is arranged in the water outlet head, the upper end of the water outlet head is provided with an opening which can correspondingly make way for running through the filter and a removable shielding cover, the filter is detachably connected with the water outlet head, the water outlet head is fixedly connected with the bottom of the boiled water tank through alock sleeve, the lock sleeve is connected with the lower end of the water outlet head, the lock sleeve and the water outlet head clamp the bottom of the boiled water tank inside and outside simultaneously and respectively, the filter is a circular filter screen with the shape consistent with that of a water outlet head inner hole, the filter is arranged in the water outlet head in a matched mode,and the water outlet head is connected with a valve in a sealed mode. The mechanism can be applied to heating type water tanks of various home appliances, water scale and impurities can be filtered ata water outlet, disassembling is very convenient, and cleaning is convenient.