Can you turn lead dioxide into lead?
Decomposition of lead(IV) oxide at different temperatures forms different types of oxides. At around $\pu{600 ^\circ C}$, lead(II) oxide forms. Wikipedia adopts the scheme of lead(IV) oxide decomposition in air summarized by White and Roy [1]:

$$\ce{PbO2 -&gt;[\pu{293 ^\circ C}] Pb12O19 -&gt;[\pu{351 ^\circ C}] Pb12O17 -&gt;[\pu{375 ^\circ C}] Pb3O4 -&gt;[\pu{605 ^\circ C}] PbO}$$

You can then reduce lead(II) oxide to lead using carbon or carbon monoxide at around $\pu{1200 ^\circ C}$. The effect of dissolved inorganic carbon is discussed by Wang et al. [2]
$$
\begin{align}
\ce{PbO + CO &amp;-&gt;[\pu{1200 ^\circ C}] Pb + CO2}\\
\ce{2 PbO + C &amp;-&gt;[\Delta] 2 Pb + CO2}
\end{align}
$$
Note that lead(II) oxide can also decompose to release toxic fumes of lead which can be harmful and also doesn't serves your purpose of getting solid lead.
References

White, W. B.; Roy, R. Phase Relations in the System Lead-Oxygen. J American Ceramic Society 1964, 47 (5), 242–249. DOI: 10.1111/j.1151-2916.1964.tb14404.x.
Wang, Y.; Xie, Y.; Li, W.; Wang, Z.; Giammar, D. E. Formation of Lead(IV) Oxides from Lead(II) Compounds. Environ. Sci. Technol. 2010, 44 (23), 8950–8956. DOI: 10.1021/es102318z.