Convective flow and temperature distribution in rotating inclined composite porous and fluid layers, in which the pressure gradient is kept constant, is analytically studied. The fluids in all the domains are distinct in thermal conductivities, viscosities and densities. The flow is assumed to be steady, two dimensional, laminar and fully developed. Due to the inclusion of buoyancy forces, viscous and Darcy dissipation terms, the governing equations are non-linear and coupled. The solutions for region II are obtained by the regular Perturbation process, whereas the solutions for region I and region III are obtained by solving them as linear differential equations with constant coefficients. The outcomes of the governing parameters on the fluid flow are numerically computed and graphically depicted and inspected in detail. It is observed that increase in Coriolis force incorporated through the porous and rotation parameters reduces the temperature and axial velocity of fluid in the three regions.