The invention discloses a sludge biochar soil conditioner production device which structurally comprises a supporting table, a pyrolysis device, a motor, a hopper, a material guide pipe, a heater and a collecting box, the pyrolysis device is fixedly installed on the upper end face of the left side of the supporting table, the motor is fixedly installed at the top of the pyrolysis device, and a rotating rod is driven to rotate through rotation of the motor, so that certain outward throwing force is generated, at that moment, a sliding shaft slides in a fixed pipe sleeve, so that a push rod is driven to push the sludge outwards in the fixed pipe sleeve, the heating uniformity of the sludge is improved, heat is dispersed into a plurality of heat guide pipes through branch guide pipes, and after the heat enters the heat guide pipes, through extrusion of convex blocks, spraying out from nozzles is accelerated; through the plurality of nozzles which are vertically arranged, the overall circular outer side of a heat preservation container body is subjected to more uniform heat, the sludge in the heat preservation container body is overall and uniformly heated, and the overall pyrolysis effect of the sludge is improved.