Portable fire water tank

The utility model discloses a portable fire-fighting water tank, which relates to the technical field of fire-fighting equipment and comprises a supporting base and a fire-fighting water tank, the fire-fighting water tank is mounted on the upper surface of the supporting base, supporting legs are symmetrically arranged on the left and right sides of the lower surface of the supporting base, hydraulic cylinders are symmetrically arranged on the left and right sides of the lower surface of the supporting base, and the hydraulic cylinders are connected with telescopic rods. The end, away from the hydraulic cylinder, of the telescopic rod is fixedly connected with the movable seat, the first supporting columns are symmetrically arranged on the left side and the right side of the hydraulic cylinder, and the movable seat drives the second supporting columns and the universal wheels to rotate through the push rods, so that the universal wheels are adjusted to make contact with or be separated from the ground. The dr