The invention discloses a multi-filtration water adding device for raising livestock. The multi-filtration water adding device comprises a primary filter tank, a secondary filter and a water storage tank which are sequentially communicated, wherein the primary filter tank is connected with a main water inlet pipe, a backflushing water inlet pipe and a backflushing water outlet pipe; a filter layeris arranged in the primary filter tank; a first filter screen and a second filter screen are arranged in the second filter, and the second filter screen is located at the upper end of the first filter screen; the secondary filter is communicated with the water storage tank through a water delivery pipe, and the water delivery pipe is provided with a salt or nutrient solution material adding port;a refrigerating layer wraps the water storage tank and connected with a refrigerating device, and an electric heating rod is arranged inside the water storage tank; the middle-lower portion of the water storage tank is provided with a food-grade filter screen, and the water storage tank is internally provided with a temperature sensor; a water outlet of the water storage tank is connected with alivestock-raising drinking water pipeline. The multi-filtration water adding device for raising livestock can conduct multiple filtration and temperature control on drinking water for livestock, and has the advantages of high water adding efficiency, safe and reliable water use and convenient use.