Patent ID: 8695228

Claim:
A composite washing system comprising: a drum dryer which dries laundry to be dried, and includes a drying drum adapted to receive the laundry, a hot air supply path adapted to guide a flow of hot air, a hot air supplier arranged in the hot air supply path to generate the hot air, and an air condenser adapted to condense the hot air; a cabinet dryer which is coupled to one side of the drum dryer, and is defined with a laundry receiving compartment, the cabinet dryer including a hot air inlet duct adapted to receive the hot air flowing through the hot air supply path; and a hot air supplying device which is arranged in the cabinet dryer to receive the hot air from the hot air inlet duct and to supply the received hot air to an inside of the laundry, wherein the hot air supply path includes: a first air supply duct which guides the hot air into the driving drum; a second air supply duct which is connected to the first air supply duct and the hot air inlet duct to guide the hot air generated from the hot air supplier into at least one of the first air supply duct and the hot air inlet duct; and a third air supply duct which guides air discharged from the driving drum to the air condenser, wherein a valve is arranged in the second air supply duct to guide the air flowing through the second air supply duct toward the first air supply duct and/or the hot air inlet duct.