Belliazzi received his first training from Tommaso Solari in Naples, but followed the styles of Alfonso Balzico and Stanislao Lista.

[1] Belliazzi completed one of the statues, of King Charles III of Spain, outside of the Royal Palace of Naples.

In 1869 at Naples and in 1870 at Parma, he exhibited a Pinzochera in terra cotta, for which he was awarded a silver medal.

In 1872 in Milan, he exhibited a Springtime, which had genre characteristics and depicted Neapolitan peasants.

At the 1877 Esposizione of Naples, he exhibited a Riposo del pastore and a group L'avvicinarsi della procella (Capodimonte Museum).