The Catalan outfit entered the match as the overwhelming favourites to book their spot in the next round following a 4-1 win in Valencia last week.
It then got worse for Levante when Cesc Fabregas made it 5-1 as Barcelona triumphed 9-2 on aggregate.
Read how it all unfolded in Sports Mole's minute-by-minute live commentary of the action below.
BARCELONA: Pinto; Montoya, Puyol, Bartra, Adriano; Song, Roberto, Iniesta; Tello, Fabregas, Sanchez
LEVANTE: Jimenez; Juanfran, Vyntra, Karabelas, Nagore; El Adoua, Pinto, Rios; Garcia, Camarasa, Angel