Portable combined metal table

The utility model relates to the technical field of metal tables, and discloses a portable combined metal table which comprises two main table plates, folding extension table plates are arranged on the opposite sides of the two main table plates, and two positioning grooves are formed in the right face of the main table plate on the left side and the right face of the folding extension table plate. The left side of the main table board on the right side and the left side of the folding extension table board are each provided with two positioning blocks matched with the positioning grooves, and the lower faces of the two main table boards are each provided with a storage groove. According to the metal table, the two main table plates are arranged, so that the folding extension table plates with different lengths can be mounted between the two main table plates, the usable area of the metal table can be increased, the two main table plates can be turned over by arranging the connecting pieces, the main table pl