A multiple laundry machine, in which an auxiliary drying device is coupled to a general laundry machine, is disclosed. The multiple laundry machine includes a laundry machine for washing or drying laundry contained in an interior of the laundry machine, an auxiliary drying device arranged at one side of the laundry machine, the auxiliary drying device having a laundry container formed in an interior of the auxiliary drying device, and a driver provided at the auxiliary drying device, to drive the auxiliary drying device.