Smokeless multi-fuel portable stoves with reversible cooking attachment

A portable stove, comprising:

• a body, including:
• exterior walls having ventilation holes,
• a bottom,
• foldable legs attached to the bottom,
• a top having an opening;
• a reversible cooking attachment having an outward orientation and an inward orientation, including:
• a collar which projects up from the stove top in the outward orientation to support a cooking vessel wider than the collar, and projects into the stove body in the inward orientation for storage and to support a cooking vessel narrower than the collar,
• a mounting ring for removably affixing the attachment to the opening at the top of the stove body, the ring having a rounded lip for creating a downdraft and redirecting smoke back into the stove body, and
• foldable arms having a supporting side with dogs and an angled tip, the arms extending away from the opening in the outward orientation such that the supporting sides are configured to be in contact with a bottom of the wider cooking vessel such that the dogs are configured to assist in holding the wider vessel above the stove, and the arms folding within a circumference of the stove top opening in the inward orientation, such that the arms occupy a space within the collar and the arms' angled tips are coplanar with—and configured to act as supports of—a bottom of the narrower cooking vessel,
• wherein the collar connects the arms to the mounting ring;
• an electronics housing located inside and at the bottom of the stove body, including:
• an external power connector,
• a battery box, and
• an exterior hatch configured to provide access to the battery box through the bottom of the stove;
• an electric fan above the electronics housing, the fan including:
• an electrical connection to a circuit that controls the fan's speed;
• a shield above the fan;
• a removable ash pan above the shield;
• a burn chamber above the ash pan, including:
• a fire grate that allows ashes to fall into the ash pan, and
• an interior wall having ventilation holes;
• wherein the electric fan, the shield, the ash pan, the firebox, and the burn chamber are inside the walls of the stove body.