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\usepackage{xepersian}
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\begin{document}
سلام
\begin{landscape}
\begin{figure}[ht]
‎\begin{minipage}[t]{0.5\linewidth}      ‎   
‎\centering \includegraphics[width=0.3\textwidth]{test}‎
‎\caption{‎‎‎}

‎\centering \includegraphics[width=0.3\textwidth]{test}‎
‎\caption{}
‎\end{minipage}
‎\hspace{8mm}‎
‎\begin{minipage}[t]{.5\linewidth}‎   
‎\centering \includegraphics[width=0.3\textwidth]{test}‎
‎\caption{}

‎\centering \includegraphics[width=0.3\textwidth]{test}‎
‎\caption{}
‎\end{minipage}‎
‎\end{figure}‎

\begin{figure}[ht]
‎\begin{minipage}[t]{0.5\linewidth}      ‎   
‎\centering \includegraphics[width=0.55\textwidth]{test}‎
‎\caption{‎‎‎}

‎\centering \includegraphics[width=0.55\textwidth]{test}‎
‎\caption{}
‎\end{minipage}
‎\hspace{8mm}‎
‎\begin{minipage}[t]{.5\linewidth}‎   
‎\centering \includegraphics[width=0.55\textwidth]{test}‎
‎\caption{}

‎\centering \includegraphics[width=0.55\textwidth]{test}‎
‎\caption{}
‎\end{minipage}‎
‎\end{figure}‎
\end{landscape}
\end{document}