Double-chamber medicament bag

The utility model relates to the technical field of medical supplies, and discloses a double-chamber medicament bag which comprises an inner bag and an outer bag, a bag body of the inner bag is provided with a detachable isolation belt for dividing the inner bag into two chambers, an infusion piece is arranged on the inner bag and comprises a plug body and a guide pipe, and the guide pipe extendsto the inner side of the inner bag from the outer side of the inner bag. The plug body is arranged at the end of the guide pipe on the outer side of the inner bag, the guide pipe on the inner side ofthe inner bag is provided with a drainage port, a foldable blocking piece is arranged at the drainage port and connected with a bag body of the inner bag in an attached mode, an inserting part is arranged on the side wall face, facing an inner cavity of the guide pipe, of the blocking piece, and a bearing part matched with the inserting part is arranged on the inner wall. And the insertion part isinserted into or pulled ou