The invention belongs to the technical field of snow blower nozzles, and particularly relates to a screw-type hot air nozzle with an air blasting pipe sealing device. The screw-type hot air nozzle comprises an air blasting pipe and a nozzle main body, and the air blasting pipe is located in the nozzle main body and provided with air blasting pipe sliding wheels; and a nozzle motor is further arranged on the air blasting pipe, a distance sensor is arranged on the side face of the nozzle main body and electrically connected with the nozzle motor through a controller and a motor driver, and an air volume valve is arranged on the nozzle main body. The nozzle motor pushes a screw sliding block through a screw to drive the air blasting pipe to stretch out downwards, the screw-type hot air nozzlecan be tightly attached to the road surface during snow clearing, when encountering ice bags pressed by vehicles, the nozzle motor drives the air blasting pipe to be lifted upwards, and air blastingis not interrupted in the process of crossing the ice bags; and the air supply volume of the air volume valve on the flat road surface is decreased, the air volume valve is opened wide when encountering the ice bags, the ice bags are removed through the large air volume, thus the ice bags can be effectively removed, and the air volume can also be saved.