Immigration commissioner Abdullah Khamis Abdullah said Emwazi had been drunk and fellow passengers on his flight had complained about his behaviour.
At the airport, Emwazi had "tried to force his way in".
He added: "He said 'Give me the permit to the country... you are nothing here, you're just rubbish'."
Mr Abdullah said: "We didn't get any order or whatever from any country or any organisation to stop Emwazi.