A laundry machine (100) is disclosed. The laundry machine (100) includes a tub (120), an air supply unit (160) configured to circulate air in the tub (120), a heat pump including a compressor (165), an evaporator (220), an expansion valve, and a condenser (240), the heat pump being configured to dehumidify and heat the air from the air supply unit (160), and a cooling unit (300, 400, 500) installed at the compressor (165) to cool the compressor (165) using a supplied fluid.