Portable drainage box placing rack

The utility model discloses a portable drainage box placing rack which comprises a box body with an opening in the top, a telescopic rod installed on the side face of the box body in a lifting and sliding mode and a placing box located in the box body and fixed to the telescopic rod, and the placing box is used for placing a drainage box. A sliding groove corresponding to the telescopic rod is formed in the inner side of the box body, and a connecting piece of the containing box and the telescopic rod is arranged on the sliding groove in a penetrating mode. A handle is arranged at the top end of the telescopic rod, and a plurality of universal wheels with brake mechanisms are arranged at the bottom of the box body. According to the drainage box, the containing box and the box body jointly form the containing cavity for containing the drainage box, the containing height of the drainage box is changed by adjusting the position of the telescopic rod relative to the box body so as to meet the drainage requirement