To provide a treatment facility of a plastic waste capable of certainly extinguishing a fire when the fire is generated in a treatment line for crushing and conveying the plastic waste.

In the treatment facility for the plastic waste for crushing the plastic waste and conveying it to a predetermined place, fire detectors 7a-7e are provided on the treatment line for crushing and conveying the plastic waste and water-spraying devices 8a-8e for spraying water to the treatment line when the fire is detected by the fire detectors 7a-7e. Further, a discharge mechanism is provided for discharging the plastic waste existing in the treatment line to the outside of the treatment line when the fire is detected by the fire detectors 7a-7e.

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