A droplet discharge apparatus includes a droplet discharge head which
discharges droplets; a liquid retention unit which is configured such
that a liquid surface of a liquid retained in the liquid retention unit
is located below the droplet discharge head, the liquid retention unit
including an atmosphere open port; a liquid channel which couples the
droplet discharge head and the liquid retention unit; a liquid tank in
which the liquid is retained, the liquid tank being sealed; a liquid
inflow channel which couples the liquid retention unit and the liquid
tank, an inflow port of the liquid inflow channel in the liquid retention
unit being located below the atmosphere open port; a liquid sending
channel which couples the liquid tank and the droplet discharge head; and
a pump which sending the liquid in the liquid tank to the droplet
discharge head.