The invention discloses a garment drying machine and an air channel assembly for the garment drying machine. The garment drying machine comprises a shell assembly, an air channel assembly and a draught fan, wherein the shell assembly comprises a garment drying cavity and an air inlet communicated with the garment drying cavity; the air channel assembly is arranged on the shell assembly, and comprises an air channel assembly channel and nozzles; the draught fan is arranged on the shell assembly and used for driving airflow in the airflow channel to be jetted out of the nozzles; the nozzles arearranged at the air inlet and jet the airflow to the garment drying cavity, and at least one section of cross sectional area of the nozzles is gradually decreased in the jetting direction of the airflow. According to the garment drying machine in the embodiment, good flow jetting and drainage effects can be achieved, generation of folds can be avoided, and parts of the folds are removed.