Sevilla are currently sitting bottom of the table.
"I'm convinced that Emery will be the coach by the end of the season and I say that because I believe he is going to succeed at Sevilla and that he's capable of taking this project forward," Del Nido told the television channel Telesevilla.
"Thinking about nothing else but sacking the coach is not good for the club. We have to be calm and analyse what has happened up to now.
"Unai's experience means we have more confidence in him."