The invention discloses a movable cable reel capable of removing silt by outputting high-pressure water. The movable cable reel comprises a reel body. A cable winding roller body is arranged in the center of the reel body. Retaining discs are fixedly mounted at the two ends of the cable winding roller body. A high-pressure pump is fixedly mounted on the outer side disc surface of the first retaining disc. A water storage tank is fixedly mounted on the outer side disc surface of the second retaining disc. A water outlet of the high-pressure pump is connected with a lift type high-pressure water gun. The lift type high-pressure water gun is composed of a high-pressure water gun body, a straight steel tube and a water diversion hose. The tail end of the straight steel tube is fixedly connected with the high-pressure water gun body. A silt shovel head is arranged on one side of a pump body of the high-pressure pump. The silt shovel head is in corresponding threaded connection with the tail end of the straight steel tube. In this way, the movable cable reel can be used as a cable reel for winding cables and putting the cables in order, and also can output high-pressure water to spray and clear silt in a sewer.