  Using the free fermions technique and bosonization rules we introduce the
multicomponent DKP hierarchy as a generating bilinear integral equation for the
tau-function. A number of bilinear equations of the Hirota-Miwa type are
obtained as its corollaries. We also consider the dispersionless version of the
hierarchy as a set of nonlinear differential equations for the dispersionless
limit of logarithm of the tau-function (the $F$-function). We show that there
is an elliptic curve built in the structure of the hierarchy, with the elliptic
modulus being a dynamical variable. This curve can be uniformized by elliptic
functions, and in the elliptic parametrization many dispersionless equations of
the Hirota-Miwa type become equivalent to a single equation having a nice form.
