Transport of charged dust grains into the galactic halo
  We develop a 3D dynamical model of dust outflows from galactic discs. The
outflows are initiated by multiple SN explosions in a magnetized interstellar
medium (ISM) with a gravitationally stratified density distribution. Dust
grains are treated as particles in cells interacting collisionally with gas,
and forced by stellar radiation of the disc and Lorenz force. We show that
magnetic field plays a crucial role in accelerating the charged dust grains and
expelling them out of the disc: in 10--20~Myr they can be elevated at distances
up to 10~kpc above the galactic plane. The dust-to-gas ratio in the outflowing
medium varies in the range $5 \cdot 10^{-4} - 5 \cdot 10^{-2}$ along the
vertical stream. Overall the dust mass loss rate depends on the parameters of
ISM and may reach up to $3\times 10^{-2}$~\Msun~yr$^{-1}$
