The present invention relates to a dual purge ejector and a dual purge system using the same, wherein one side of the main body is completely opened, and the discharge end of the nozzle is located adjacent to the opening hole. Therefore, when the ejector is separated, the negative pressure is not formed inside the main body, so that the fuel evaporation gas is prevented from being discharged to the atmosphere, and the failure of the dual purge system can be reliably diagnosed.
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