  Recently, the IceCube Neutrino Observatory has detected the neutrino event
IceCube-170922A from the radio-emitting tidal disruption event (TDE) named
AT2019dsg, indicating to be one of the most likely sources of high-energy
cosmic rays. So far, the photo-hadronic interaction is considered in the
literature to interpret neutrino emission from AT2019dsg. Here, we examine
whether the IceCube-170922A along with the broadband electromagnetic emission
from the source can also be described by a pure hadronic emission employing the
proton blazar inspired (PBI) model, which takes into account the
non-relativistic protons that emerge under the charge neutrality situation of
the blazar jet and thus offers sufficient target matter for pp interactions
with shock-accelerated protons. Our findings show that the PBI model is able to
consistently describe the IceCube observations on AT2019dsg and the broadband
spectrum of the source without exceeding the observed X-ray and gamma-ray flux
upper limits imposed by the XMM-Newton and Fermi-LAT telescopes.
