EXHAUSTING AND DUST-DISCHARGING DUCT FOR AIR CONDITIONER

PROBLEM TO BE SOLVED: To provide an exhausting and dust-discharging duct for an air conditioner which can positively discharging dust outside even containing much oil or humidity.SOLUTION: There is provided an exhausting and dust-discharging duct, including: a shaft part mounted on the tip end of a ventilating hose to form a wind circuit internally; and a flow passage opening/closing lid provided to the end of the shaft part which opens when ventilating. The lower face of the wind circuit provided in the shaft part is slanted obliquely upward as it gets closer to the flow passage opening/closing lid so as to reduce an area of the tip end of the shaft part. Thus, when discharging dust, the flow rate of air increases and the flow passage opening/closing lid easily opens so that the dust is positively discharged outside.