A wireless network receiver includes a heat-dissipating unit, a wireless network receiving module, an electrical connecting unit, and a shell unit. The heat-dissipating unit has at least one main heat-dissipating body and a front heat-dissipating body extended forward from the main heat-dissipating body. The wireless network receiving module is disposed on the heat-dissipating unit, and the wireless network receiving module includes a first substrate unit and a second substrate unit electrically connected to the first substrate unit. The electrical connecting unit includes an electrical connecting casing contacting the front heat-dissipating body and enveloping the front heat-dissipating body and a front portion of the first substrate unit. The shell unit includes a shell module for selectively exposing or hiding the electrical connecting unit.