The 22-year-old winger was one of the standout performers in Arsenal's 2-1 win away to the Premier League basement dwellers, with the Hale End academy product bagging his third goal of the season in the league.
The troubled Terriers spent most of the game on the front foot but all they had to show for their efforts was an injury-time Sead Kolasinac own goal.
It could have been more for Liverpool too, but they settled with three, in the end, to take back top spot, at least until Man City host Chelsea at the Etihad Stadium on Sunday afternoon.
"Knowing we need to take the regularity at home and away, and today this victory I think can give us confidence and the possibility to continue our target in the Premier League".
When questioned about his sides capability of finishing in the top four, Emery was optimistic.
"Our motivation is very great, every player wants to win every match".
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"But we can also trust in us, and this victory is to confirm we are in our way and we can be positive".
Arsenal have more than one way of qualifying for the top four, the Premier League as well as winning the UEFA Europa League.
Further forward, a relatively pleased Emery piled praise on goalscorer Iwobi, who now boasts a record of four goals and six assists this term.
Adama Diakhaby had two good chances to get Huddersfield - who had drawn once and lost 11 of their previous 12 league games - back into the match, but failed to really test Bernd Leno in the Arsenal goal. Judge us by our work and what the players are doing and this makes me proud.