This study investigates the magnetohydrodynamic (MHD) thermal convective phenomena in a unique geometry configuration consisting of a bottom-heated semi-circular channel with an impinging vertical jet at the middle of a rectangular duct. The complex geometry, combining a curved channel and a rectangular duct, introduces novel flow behavior and heat transfer characteristics. The effects of magnetizing field intensity and its inclination, jet velocity, are examined using computational simulations based on the finite element method. The analysis focuses on understanding the interaction between MHD forces, thermal gradients, and the impinging jet, and their combined influence on convective heat transfer. The regulating parameters for evaluating the overall thermal performance include the Hartmann number (Ha), the Rayleigh number (Ra), the Reynolds number (Re), and the wing angles of the cavity (Θ). The results provide valuable insights into the underlying physics and thermal behavior of the system, enabling the optimization of heat transfer processes in various engineering applications such as electronics cooling, energy systems, and chemical reactors.