Iranian winger Ali Gholizadeh scored his team’s first two goals in the 3rd and 14th minutes.
Mikael Ishak and Afonso Sousa scored twice each.
Kornel Lisman and Dino Hotic were on target as well.
Jani Atanasov scored Puszcza Niepołomice’s sole goal at the Enea Stadion.
Lech Poznan remained contender to win the title with 63 points, two points behind Raków Częstochowa.