Post processor hoop with double hoop structure

The invention discloses a post processor hoop with a double hoop structure. The post processor hoop with the double hoop structure comprises a hoop seat and is characterized in that the hook seat is provided with two arc-shaped supporting parts arranged adjacent to each other in the length direction; pins penetrating through the width direction of the hoop seat are arranged at both ends of any arc-shaped supporting part; a hoop belt forming a circle with the arc-shaped supporting part are arranged oppositely above any arc-shaped supporting part; the two ends of each hoop belt sleeve the pins;an adjusting device for adjusting the tightness of the hoop belts is arranged on the top of each hoop belt; the lower part of each hoop belt is bent outward to form an installation seat plate; a plurality of reinforcing rib plates are arranged between the hoop seat and the installation seat plates; one end of the hoop seat is flush with one ends of the installation seat plates; and the other end of the hoop seat extends u