Direct-current power supply portable audio power amplification circuit

A direct current power supply portable audio power amplification circuit is provided with a left side circuit STK1 and a left side circuit STK2, the left side circuit STK1 is connected with the left side circuit STK2, and the left side circuit STK1 is provided with a first signal input unit, a first signal voltage amplification unit, a first thermal coupling bias unit, a first lead compensation unit and a first current amplification unit. The left side circuit STK2 is provided with a second signal input unit, a second signal voltage amplification unit, a second thermal coupling bias unit, a second lead compensation unit and a second current amplification unit, and the first signal input unit is connected with the first signal voltage amplification unit; the first signal voltage amplification unit is electrically connected with the first thermal coupling bias unit and the first current amplification unit, the first thermal coupling bias unit is connected with the first lead compensation unit, and the second si