LHCb as a forward general purpose detector: results and prospects

The LHCb detector has been designed for the studies of CP violation in B and D hadrons decays and their rare decays. But it is also the only detector at the LHC to be fully instrumented in the forward region of pp collision, for pseudo-rapidity from 2 to 5. This peculiar coverage of the kinematic phase space has been exploited during the Run I of the LHC in various analyses. I will discuss the impact of this part of the LHCb physics program on our understanding of various aspects of QCD, such as multiple parton interaction, central exclusive production or proton structure functions with for example the measurement of forward top production. I will also give brief prospects on this program for Run II and the LHCb upgrade.