Rotary opening and closing type barbecue oven

The utility model discloses a rotary opening and closing type barbecue oven which comprises a parallelogram connecting plate structure composed of two supporting plates, an upper connecting plate and a lower connecting plate. When the supporting plate rotates to be vertical, the supporting plate is in an opening state, and when the supporting plate rotates to be horizontal, the supporting plate is in a buckling state; in the buckling state, at least one part of the upper connecting plate and at least one part of the lower connecting plate coincide. The two parallelogram connecting plate structures are connected through the bottom plate and the side plate, and in the opening state, the upper connecting plate, the lower connecting plate and the side plate jointly define a furnace cavity. Rotation is achieved through the parallelogram connecting plate structure, and therefore the barbecue oven has an opening state and a buckling state. In an opening state, the upper connecting plate rotates to the uppermost end