Diesel intake manifold

The utility model discloses a diesel intake manifold comprising a pressure-stabilizing cavity, an intake master pipe passage and a mixed gas exhaust passage. The intake master pipe passage and the mixed gas exhaust passage are both communicated with the pressure-stabilizing cavity. The diesel intake manifold further comprises a low-temperature EGR (exhaust gas recirculation) passage, a high-temperature EGR passage, an EGR cooling reflow passage, a warm air and water outlet passage and a cooling water outlet passage; a gas inlet of the low-temperature EGR passage is communicated with the intake master pipe passage; an inlet of the EGR cooling reflow passage is communicated with an EGR cooling reflow steel pipe; an outlet of the warm air and water outflow passage is communicated with a warm air steel pipe; an inlet of the cooling water outlet passage is communicated with a water way of a diesel cylinder block, and an outlet thereof is communicated with a radiator pipeline; the wall of the cooling water outlet passage is contacted with both the wall of the intake master pipe passage and the wall of the pressure-stabilizing cavity. The diesel intake manifold helps improve intake of a diesel engine, improve power performance of the diesel engine, reduce emission and accordingly improve operating performance of the diesel engine.