Thermal recovery horizontal well expansion pipe hanger

The utility model discloses a thermal recovery horizontal well expansion pipe hanger, which comprises a drill rod, an anti-falling-object cap, an expansion hanging body and an expansion emitting chamber, wherein the expansion hanging body consists of an expansion pipe, hanging tooth bumps and hanging rubber rings; the expansion emitting chamber is encircled by an expansion cone, a propelling piston, a bearing screw cap, a plug and the expansion pipe; a sealing connecting pair for forming an enclosed cavity together with the drill rod and the expansion emitting chamber is connected below the plug; a pulling connecting pair for pulling the sealing connecting pair is connected below the drill rod; and a tail pipe coupling is connected below the expansion pipe. Due to the adoption of the thermal recovery horizontal well expansion pipe hanger, operation is simplified, damage to a tail pipe is reduced, and meanwhile, sundries are prevented from falling into the hanger.