This carbon furnace adopts a quadrilateral folding structure, cleverly designing the four sides of the furnace body into a foldable pattern. When in use, simply unfold gently to quickly build a stable barbecue grill; And when storing, it can be easily folded, greatly reducing the volume and saving storage space. This folding design is not only convenient to carry, but also makes the stove safer during transportation, avoiding damage caused by bumps.