  The coherent spin dependent transport through a set of two capacitively
coupled quantum dots placed in a magnetic field is considered within the
equation of motion method. The magnetic field breaks the spin degeneracy. For
special choices of gate voltages the dot levels are tuned to resonance and the
orbital Kondo effect results. For different Zeemann splittings at the dots the
Kondo resonance can be formed for only one spin channel. In this case the
system operates as an efficient spin filter.
