Heat accumulator with good heat accumulation effect

The utility model discloses a heat accumulator with a good heat accumulation effect, which belongs to the technical field of heat accumulator equipment and comprises a heat accumulation box, the bottom of the heat accumulation box is fixedly connected with two support leg frames, the upper side of the heat accumulation box is communicated with a water inlet valve port, the lower part of one side of the heat accumulation box is communicated with a water outlet valve port, and the water inlet valve port is communicated with a water outlet valve port. One side of the heat storage box is fixedly connected with a box door plate, one side of the box door plate communicates with an air inlet valve port, one end of the air inlet valve port extends into the heat storage box and communicates with a heating air pipe, the end, away from the air inlet valve port, of the heating air pipe communicates with an air outlet valve port, and the air outlet valve port penetrates and extends to the outer side of the box door plate.