Porteleki was born in Budapest, but grown up in a little Transdanubian village, named Ozora, where his grandfather was a village musician, playing "citera". The child Porteleki learned this insrument and played together with his grandfather in different village feasts.
When he was 12 his family moved to Budapest where he started learning the classical violin. He regularly visited the Muzsikás "dance hose" and started to be interesed in the traditional music. He formed his first group in 1975 and a year later he founded the folkmusic group TÉKA, where he was the violonist and the solo singer. With the Téka ensemble he released 4 albums and besides the Muzsikas, Téka run the most popular "tanchaz" club in Budapest of those years.
From the beginning he collected folk music for the Academy of Science of Hungary, meanwhile he played together with the local folk musicians. Porteleki regards them as his musical masters.
He left Téka in 1991 and became the professional musician of the Honvéd Art Ensemble.
In 1996 he became the member of the Muzsikas, he plays the violin, the lute and he sings there, as well.