Hanging ring type flexible freight bag drawing and drafting drying oven

The utility model discloses a hanging ring type flexible freight bag drawing and drafting oven which comprises an oven body, the oven body comprises an upper oven body and a lower oven body which are oppositely arranged at intervals in the vertical direction, the interval between the upper oven body and the lower oven body is adjustable, monofilaments penetrate through the interval between the upper oven body and the lower oven body, and a fan and a heating device are arranged in an inner cavity of the upper oven body. A square protrusion which protrudes towards an inner cavity of the upper drying oven and is integrated with the upper drying oven is arranged on the bottom face of the upper drying oven, an air inlet and an air outlet are formed in the two opposite sides of the square protrusion respectively, the air inlet is connected with an inlet of a fan through a pipeline, and an outlet of the fan is connected with an inlet of a heating device through a pipeline. An outlet of the heating device is connecte