Multifunctional storage cabinet

The utility model relates to a multifunctional storage cabinet which comprises a cabinet body, a cabinet door and supporting legs. The cabinet body is composed of a bottom plate, a left side plate, a right side plate, a top plate and a rear plate. The multifunctional storage cabinet is characterized in that a square supporting cross beam is arranged in the cabinet body, partition plates are arranged between the supporting cross beam and the inner surface of the cabinet body, the supporting cross beam is detachably mounted at the center position of the rear plate through a fastening bolt, and the four faces of the square supporting cross beam are respectively provided with an inserting groove; the bottom plate, the left side plate, the right side plate and the top plate are respectively provided with one inserting groove corresponding to the positions of the four inserting grooves in the supporting cross beam; the upper faces and the lower faces which are symmetric of the partition plates are respectively prov