The invention discloses a heat collector suitable for thermoelectric recycling of tail gas. The heat collector comprises a heat collection box body, a heat guiding plate arranged on the outer surface of the heat collection box body and a thermoelectric module arranged on the heat guiding plate, wherein the heat collection box body comprises an inlet pipe, an outlet pipe and a heat collection section; the heat guiding plate is arranged on the heat collection section; the interior of the heat collection box body is provided with a heat collection chamber; the heat collector also comprises a heat pipe including an evaporation section, a condensation section and a heat insulation section; the evaporation section is arranged in the heat collection chamber positioned at the heat collection section part; the condensation section is arranged inside the heat guiding plate; and the heat insulation section is communicated with the evaporation section and the condensation section. According to the heat collector suitable for thermoelectric recycling of tail gas, the heat pipe is additionally arranged on the heat collection box body, and the utilization space of the heat pipe is increased, so that the heat collection effect of the heat collector is greatly improved, and the pressure loss caused by the heat collector is relatively small.